Development of an Enterprise Transportation Data Model for Fairfax County, Virginia Presented by:

Development of an Enterprise Transportation Data Model for

Fairfax County, Virginia

Presented by:Presented by:

Jim Fries

PlanGraphics, Inc

Brendan Ford

Fairfax County GIS

Presentation Topics

• Background/Existing Situation

• Model Requirements

• Model Development Process

• Existing Model Review

• Transportation Network Applications

• 911 CAD and Non-emergency Routing Needs

• Logical Model

• Issues and Next Steps

Where is Fairfax County?

1990 Population: 818,584

2000 Population: 969,749 (+18.5%)

Total Land Area:400 square miles

Roadway Miles: Over 4,000 miles

Regional Area

Loudoun CountyLoudoun County

Prince William Prince William CountyCounty

Arlington Arlington CountyCounty

City of FairfaxCity of Fairfax

City of Falls City of Falls ChurchChurch

City of City of AlexandriaAlexandria

Stafford CountyStafford County

Fairfax CountyFairfax County

Existing Situation Multiple centerlines currently in use

Enterprise, School, E911 Implementing a new CAD system

Go live target of Q4 2008 Strong data sharing ties with State and other

local governments Lots of users and agencies with desire to

perform AVRR applications Existing CAD system does not support routing

Enterprise Centerline

Relatively simple data model One of the most detailed in Virginia Over 40 attributes Maintained in Oracle/ArcSDE Regional (multi-jurisdiction) coverage Updated regularly based on

(a) plat recordation, (b) site plan approval, (c) error reports

from users, and (d) annual orthoimagery updates Contains few attributes that support routing

Centerline Model Requirements Provide a single centerline model that can be used by

all Fairfax County agencies irrespective of purpose Support advanced automated routing for Fairfax

County’s public safety agencies (Police, Fire & Rescue, Sheriff, Emergency Management) using new CAD software

Support routing by non public safety agencies Allow use by Virginia State Police and Virginia

Department of Transportation to be co-located in new joint Public Safety and Transportation Operations Center (PSTOC)

Contribute to the maintenance of the new VITA road centerline (RCL) dataset for the entire Commonwealth of Virginia

Participating Agencies

Public Safety Police Fire & Rescue Sheriff OEM DPSC

VSP

Non-Public Safety Public Works and

Environmental Services Transportation Human Services Public Schools GIS Others (Parks, TA, etc.) VDOT VITA

Model Development Process Three Step Process: Centerline, AVRR, and Model

Step One: Centerline Ascertain existing County street centerline and addressing

components, processes, and procedures Analyze CAD products for centerline and routing capabilities Evaluate available models, standards, and protocols Establish comprehensive street centerline requirements Assess external state and local data sources (9 entities)

Step Two: AVRR Establish automated vehicle routing recommendation (AVRR)

requirements Evaluate non-commercial sources for routing data (26

entities)

Model Development Process – con’t

Step Three: Transportation Network Model Document enterprise transportation network and AVRR

requirements Prepare and Review Conceptual Strawman Model Develop Logical Data Model Prepare Physical Data Model

Existing Model ReviewFederal DHS Geospatial Data Model (FGDC)

DOJ (CAD and RMS Draft Specifications) Global Justice Data Model (Global JXDM) DOT - BTS NSDI Framework Standard: ANSI Geographic Information Framework Data Content Standard – Roads (also Rail, Transit) National Information Exchange Model(NIEM) – DOJ and DHS Partnership

State Washington DOT Virginia DOT

Local King County, Washington (Regional TNet) Cobb County, Georgia (Etrans)

Other UNETRANS NENA

King County,

Washington

Cobb County, Georgia

DHS Geospatial Model

DHS Geospatial Model

Transportation Network Applications1. Address Location (e.g. geocoding, address assignment)

2. General Analysis/Modeling (e.g., incident and network analysis)

3. General Reference (e.g., base map layer, reporting, visual reference) 4. Permitting (e.g., coordination, inspection scheduling)

5. Planning (e.g., employment and housing forecasts, new facility site selection, route selection, traffic zone analysis, highway planning)

6. Road Attribute Determination (e.g., cross street determination, legal speed limit confirmation)

7. Public Health and Safety (e.g., 911 dispatching, alert notification)

8. Emergency Routing (e.g., network incident response, criminal escape route determination, evacuation route selection)

9. Routine Routing (e.g., school buses, solid waste, legal service)

10. Asset/Infrastructure Management (e.g., equipment tracking, project operation and maintenance)

Automated Routing Needs Automated routing routines must account for multiple factors:

direction of travel speed (legal and free flow) grade/inclination traffic flow impedances (intersections, turn restrictions, vehicle restrictions,

blockages, obstacles) other risk factors

Nearly all agencies recognize the value of performing automated routing across an integrated network that consists of all roadways, pathways, railways, and waterways

Only four County agencies (public schools, transit,para-transit, solid waste) currently do limited computerized routing using different proprietary COTS software packages

Fairfax County Logical Model

Boundary Features

Fairfax County VirginiaLogical Diagram03/02/07

Other Features

AirportAddress GridAddress Point

Building FootprintCell Tower

Facility LocationHydrant

National Map GridParcelROW

School Zone/BlockTax Map GridWater Body

Raster

Aerial Photos

BOUNDARY_IDNAMEESN_NUMBERESN_FIREESN_EMSESN_POLICE

ESN

BOUNDARY_IDNAMEFIRE_NUMBER

FIRE_RESCUE

BOUNDARY_IDNAMEJURIS_TYPE

JURISDICTION

BOUNDARY_IDNAMEPOL_NUMBER

POLICE

BOUNDARY_IDNAMESCHOOL_NUMBER

SCHOOL

BOUNDARY_IDNAMEZIPCODE

ZIP

SEGIDFX_SOURCECFCCROAD_CLASSFFX_CLASSOWNERSHIPMAINT_RESSTATUSAUTHORIZE_USECLEARANCEROUTINGEMERGENCY_USE

TR_ROADWAY

PATHWAY_IDPW_NAMEPATH_TYPESURF_TYPEVEHICLE_LIMITOWNERSHIPMAINT_RESSTATUSFEAT_LENGTHMIN_WIDTHDIRECTIONPED_BRIDGEBARRIER_TYPEDESCRIPINV_NUMXOTRANSPLANMSMPROGRAM

TR_PATHWAY

RAILWAY_IDRR_NAMEROUTE_NUMBERUSDOT_RAIL_NUMBERRR_TYPERR_SERVICE_TYPERR_MPFROM_MPTO_MPMAX_SPEEDSTATUSCFCCFEAT_LENGTHFEAT_WIDTHTRACK_TYPETRACK_NUMBERHAZMAT

TR_RAILWAY

WATERWAY_IDWW_NAMEALIAS_NAMEWATER_TYPEFEAT_DEPTHMIN_NAV_DEPTHFEAT_WIDTHFEAT_LENGTHMAX_SPEEDRESTRICTIONSOWNERSHIPMAINT_RESCFCC

TR_WATERWAY

Network Features/Objects

SIGN_IDNAMESIGN_TYPEDESCRIP

TR_SIGN

SENSOR_IDSENSOR_TYPEDESCRIPCOMM_CONNECTIONONLINE_ACCESSSTATUS

TR_STREET_SENSOR

MP_IDMPMP_NAMEMP_ACCESS

TR_MILE_MARKER

CROSSING_IDWATER_LEVELPASSABLESIGN

TR_LOW_WATER_CROSSING

Tables

COMMON_IDADDRESS_IDLATITUDELONGITUDENAMEALIAS_NAMEJURISDICTIONSTATEDESCRIPHAZMATCONTACT_ID

TR_COMMONPLACE_NAME

RW_NAME_IDFULLNAMERW_PREFIXRW_NAMERW_TYPERW_TYPE_USPSRW_SUFFIXRW_SUFFIX_DIRSTATUS

TR_ROADWAY_NAME

TRANS_SIDE_IDRW_NAME_IDSIDEJURISDICTIONCATEGORY

TR_TRANS_SIDE

Address

DAM_IDSTRUCTURE_IDNAMEALIAS_NAMEDAM_TYPEHAZARD_CLASSIFICATION

TR_DAM

ACCESS_IDACCESS_TYPEACCESS_NAMEALIAS_NAMEPRIMARY_ACCESSSECONDARY_ACCESSLOCATIONWARNING_TYPE

TR_MODE_CONNECTOR

INT_ID

TR_STREET_INTERSECTION

BOUNDARY_IDSIDEBORDERLINE_TYPEBORDERLINE_VALUE

TR_MODE_BORDERLINE

Street Information

SEGIDINVENTORY_IDFEAT_LENGTHMIN_WIDTHFROM_MPTO_MPSURF_TYPEMAX_INCLINATIONFREE_FLOW_SPEEDCAD_SPEEDLAW_SPEEDSPEED_LIMIT_CARSPEED_LIMIT_TRUCKFT_SECONDSTF_SECONDSDIRECTIONDIVIDEDMAX_NUM_LANEGATEDATA_SOURCE

TR_STREET_INVENTORY

LANE_IDLANE_DESIGNATIONLANE_TYPELANE_CAPACITYREVERSIBLEDOUBLE_PARK

TR_STREET_LANE

SHOULDER_IDFEAT_WIDTHSURF_TYPESIDE

TR_STREET_SHOULDERBARRIER_IDBARRIER_TYPESIDEBREAK

TR_STREET_BARRIER

MEDIAN_IDCROSSABLEMEDIAN_TYPEFEAT_LENGTHFEAT_WIDTHSIDE

TR_STREET_MEDIAN

Restrictions

TURN_IDTURN_TYPETURN_RESTRICTTURN_DAYTURN_START_TIMETURN_END_TIMETURN_ANGLETURN_PENALTYDESCRIPTURN_STATUS

TR_TURN

DEVICE_IDDEVICE_TYPEDESCRIPEST_SPEED_REDUCTION

TR_TRAFFIC_CALMING_DEVICE

BRIDGE_IDBRIDGE_TYPESTRUCTURE_IDNAMEALIAS_NAMEHEIGHTLENGTHWIDTHMAX_WEIGHTBRIDGE_SOURCEBRIDGE_UPDATESURF_TYPEVERT_UNDER_CLEARANCEHOR_UNDER_CLERANCELATITUDELONGITUDE

TR_BRIDGE

LOT_IDNAMELOCATIONPARKING_LOT_CLASSPARKING_LOT_USELIGHTINGPAVED

TR_PARKING_LOT

TRANS_SIDE_IDRANGE_IDFROM_ADDTO_ADDRANGE_TYPE

TR_ADDRESS_RANGE

RESTRICT_IDRESTRICT_TYPERESTRICT_DIRSTART_TIMEEND_TIMERESTRICT_DAY

TR_STREET_LANE_RESTRICTION

SEGIDCOUNT_IDCOUNT_TYPECOUNT_NUMCOUNT_TIMECOUNT_SOURCECOUNT_PERIODEFF_DATELAST_UPDATE

TR_TRAFFIC_COUNT

CONNECTOR_IDC_NAMECONNECTOR_TYPESURF_TYPEFEAT_LENGTHFEAT_WIDTHMAX_HEIGHT

TR_CONNECTOR

CROSS_IDTRANS_SIDE_ID1TRANS_SIDE_ID2

TR_CROSS_STREET

CONTACT_IDNAMEPHONEALT_PHONEFAXEMAILADDRESSCONTACT_TYPE

TR_CONTACT_NAME

LZ_IDNAMEOBSTACLELZ_TYPE

TR_LANDING_ZONE

WATER_IDNAMEALIAS_NAMEMIN_DEPTHMIN_WIDTHMAX_SPEEDRESTRICTIONSWATER_TYPEACCESS_IDCFCC

TR_WATER_BODY

TOLL_IDGATETOTAL_NUM_LANE

TR_TOLL_PLAZA

SIGNAL_IDSIGNAL_NUMSIGNAL_TYPEPRIMARY_NAMESECONDARY_NAMECONTROLLED

TR_TRAFFIC_SIGNAL

STATION_IDADDRESS_IDLATITUDELONGITUDENAMESTATION_TYPE

TR_STATION

SIGNAL_IDPED_IDSIGNAL_NUMSIGNAL_TYPEBUTTON_ACTIVATEDCROSSWALKOWNERSHIPMAINT_RESDATA_SOURCEEFF_DATELAST_UPDATE

TR_PEDESTRIAN_SIGNAL

BOUNDARY_IDNAMEVDOT_NUMBER

VDOT

BOUNDARY_IDNAMEUNIT_DESIGNATION

VSP

BOUNDARY_IDNAMETAZ_NUMBER

TAZ

BOUNDARY_IDNAMESHERIFF_NUMBER

SHERIFF

ACCESS_IDREF_IDTRANS_ID1TRANS_ID2

TR_MODE_INTERSECTION

LAUNCH_IDACCESS_IDLAUNCH_NAMEALIAS_NAMELAUNCH_TYPEOWNER_TYPESURF_TYPEFEAT_WIDTHFEAT_LENGTHMAX_WEIGHTMIN_DEPTHUSE_RESTRICTIONLIGHTINGPARKING_LOT_SIZELIFT_CAPABILITYEMS_REMOVALAPPROACH_INSTADC_MAP_PAGECHART_PAGEDATA_SOURCEEFF_DATELAST_UPDATE

TR_LAUNCH_POINT

TRANS_IDJURISDICTIONDATA_SOURCEEFF_DATELAST_UPDATE

PolylineFeatures JURISDICTIONOWNERSHIPMAINT_RESDATA_SOURCEEFF_DATELAST_UPDATE

PolygonFeatures

REF_IDREF_NAMEALIAS_NAMELOCATION

TR_ELEVATED_CROSSING

TBS_IDSTOP_IDSTOP_TIMECURB_APPROACHSHELTERSHELTER_OWNER

TR_TRANSIT_STOP

TRANS_IDTRANS_MODEPOINT_MEASURELATITUDELONGITUDEJURISDICTIONDATA_SOURCEEFF_DATELAST_UPDATE

PointFeaturesTRANS_IDTRANS_MODEPOINT_MEASURELATITUDELONGITUDEJURISDICTIONOWNERSHIPMAINT_RESDATA_SOURCEEFF_DATELAST_UPDATE

AssetPointFeatures

TRANS_IDTRANS_MODEFROM_MEASURETO_MEASURE

TransLineObject

SEGIDFROM_MEASURETO_MEASURE

StreetLineObject

FROM_MEASURETO_MEASURE

LaneMeasure

LANE_ID

LaneObject

Street Lane Information

INT_ID

TransPointObject

TRANS_ID_FROMTRANS_ID_TOPOINT_MEASURELATITUDELONGITUDE

PointRestriction1

TRANS_IDPOINT_MEASURELATITUDELONGITUDE

PointRestriction2

ASSOC_IDTRANS_IDCONTACT_ID

TR_CONTACT_ASSOC

OWNERSHIPMAINT_RESDATA_SOURCEEFF_DATELAST_UPDATE

TransLineObject2

Fairfax County Logical ModelFairfax County VirginiaLogical - Relationships

03/05/07

CONNECTOR RAILWAY

CONNECTOR ROADWAY

WATERWAY

NETWORK

Relationship class

NamePrimary keyForeign key

TypeCardinalityNotification

Forward labelBackward label

No relationship rules defined.

TR_ACCESS_INT_REL

Origin feature class Destination table

SimpleOne to manyNone

TO_INTFROM_ACCESS

TR_MODE_CONNECTORACCESS_IDACCESS_ID

TR_MODE_INTERSECTIONName

Relationship class





TR_ACCESS_LAUNCH_REL



TO_LAUNCHFROM_ACCESS


TR_LAUNCH_POINTName

TableTR_LAUNCH_POINT

Relationship class





TR_CONNECTOR_ACCESS_REL1



TO_ACCESSFROM_CONNECTOR

TR_CONNECTORTRANS_IDTRANS_ID1


Relationship class





TR_CONNECTOR_ACCESS_REL2



TO_ACCESSFROM_CONNECTOR



TableTR_BRIDGE

Relationship class





TR_CONNECTOR_BRIGE_REL



TO_BRIDGEFROM_CONNECTOR

TR_CONNECTORTRANS_IDTRANS_ID

TR_BRIDGEName

Relationship class





TR_CONNECTOR_DAM_REL

Origin feature class Destination feature class


TO_DAMFROM_CONNECTOR


TR_DAMName

Point feature class TR_DAM

Relationship class





TR_CONNECTOR_DEVICE_REL



TO_DEVICEFROM_CONNECTOR


TR_TRAFFIC_CALMING_DEVICEName

TableTR_TRAFFIC_CALMING_DEVICE

Relationship class





TR_CONNECTOR_FTURN_REL



TO_TURNFROM_CONNECTOR

TR_CONNECTORTRANS_IDTRANS_ID_FROM

TR_TURNName

Relationship class





TR_CONNECTOR_TTURN_REL



TO_TURNFROM_CONNECTOR

TR_CONNECTORTRANS_IDTRANS_ID_TO

TR_TURNName

TableTR_TURN

Relationship class





TR_CONNECTOR_LZ_REL



TO_LZFROM_CONNECTOR


TR_LANDING_ZONEName

Point feature class TR_LANDING_ZONE

Relationship class





TR_CONNECTOR_MP_REL



TO_MPFROM_CONNECTOR


TR_MILE_MARKERName

Point feature class TR_MILE_MARKER

Relationship class





TR_CONNECTOR_REF_REL1



TO_REFFROM_CONNECTOR



Relationship class





TR_CONNECTOR_REF_REL2



TO_REFFROM_CONNECTOR



Point feature class TR_MODE_CONNECTOR

TableTR_MODE_INTERSECTION

Point feature class TR_ELEVATED_CROSSING

Line feature class TR_CONNECTOR

Relationship class





TR_CONNECTOR_BORDERLINE_REL



TO_BORDERLINEFROM_CONNECTOR


TR_MODE_BORDERLINEName

TableTR_MODE_BORDERLINE

Relationship class





TR_CONNECTOR_SIGN_REL



TO_SIGNFROM_CONNECTOR


TR_SIGNName

Point feature class TR_SIGN

TableTR_CONTACT_NAME

TableTR_CONTACT_ASSOC

Relationship class





TR_CONTACT_ASSOC_REL

Origin table Destination table


TO_ASSOCFROM_CONTACT

TR_CONTACT_NAMECONTACT_IDCONTACT_ID

TR_CONTACT_ASSOCName

Relationship class





TR_CONNECTOR_CONTACT_REL



TO_CONTACTFROM_CONNECTOR



Relationship class





TR_CONNECTOR_TRANSIT_STOP_REL



TO_TRANSIT_STOPFROM_CONNECTOR


TR_TRANSIT_STOPName

Point feature class TR_TRANSIT_STOP

Relationship class





TR_CONNECTOR_PARATRANSIT_STOP_REL



TO_PARATRANSIT_STOPFROM_CONNECTOR


TR_PARATRANSIT_STOPName

Point feature class TR_PARATRANSIT_STOP

Relationship class





TR_CONNECTOR_SCHOOL_STOP_REL



TO_SCHOOL_STOPFROM_CONNECTOR


TR_SCHOOL_STOPName

Point feature class TR_SCHOOL_STOP

TableTR_COMMONPLACE_NAME

Relationship class





TR_CONTACT_COMMONPLACE_REL



TO_COMMONPLACEFROM_CONTACT


TR_COMMONPLACE_NAMEName

Relationship class





TR_REFERENCE_INT_REL



TO_INTFROM_REF

TR_ELEVATED_CROSSINGREF_IDREF_ID


Relationship class





TR_ACCESS_INT_REL



TO_INTFROM_ACCESS



Relationship class










TR_LAUNCH_POINTName


TableTR_BRIDGE



TableTR_TURN




Relationship class








TO_INTFROM_REF



Line feature class TR_PATHWAY

Relationship class





TR_PATHWAY_ACCESS_REL1



TO_ACCESSFROM_PATHWAY

TR_PATHWAYTRANS_IDTRANS_ID1


Relationship class





TR_PATHWAY_ACCESS_REL2



TO_ACCESSFROM_PATHWAY



Relationship class





TR_PATHWAY_REF_REL1



TO_REFFROM_PATHWAY



Relationship class





TR_PATHWAY_REF_REL2



TO_REFFROM_PATHWAY



Relationship class





TR_PATHWAY_BRIGE_REL



TO_BRIDGEFROM_PATHWAY

TR_PATHWAYTRANS_IDTRANS_ID

TR_BRIDGEName

Relationship class





TR_PATHWAY_DAM_REL



TO_DAMFROM_PATHWAY


TR_DAMName

Relationship class





TR_PATHWAY_DEVICE_REL



TO_DEVICEFROM_PATHWAY



Relationship class





TR_PATHWAY_FTURN_REL



TO_TURNFROM_PATHWAY

TR_PATHWAYTRANS_IDTRANS_ID_FROM

TR_TURNName

Relationship class





TR_PATHWAY_TTURN_REL



TO_TURNFROM_PATHWAY

TR_PATHWAYTRANS_IDTRANS_ID_TO

TR_TURNName






Relationship class











Relationship class





TR_PATHWAY_MP_REL



TO_MPFROM_PATHWAY


TR_MILE_MARKERName

Relationship class





TR_PATHWAY_BORDERLINE_REL



TO_BORDERLINEFROM_PATHWAY



Relationship class





TR_PATHWAY_SIGN_REL



TO_SIGNFROM_PATHWAY


TR_SIGNName

Relationship class





TR_PATHWAY_CONTACT_REL



TO_CONTACTFROM_PATHWAY




Relationship class











Relationship class




No relationship rules defined .

TR_ACCESS_INT_REL



TO_INTFROM_ACCESS



Relationship class










TR_LAUNCH_POINTName


TableTR_BRIDGE



Point feature class

TR_MILE_MARKER


Point feature class

TR_MODE_CONNECTORTableTR_MODE_INTERSECTION




Relationship class












Relationship class








TO_INTFROM_REF



Line feature class TR_RAILWAY

Relationship class





TR_RAILWAY_ACCESS_REL1



TO_ACCESSFROM_RAILWAY

TR_RAILWAYTRANS_IDTRANS_ID1


Relationship class





TR_RAILWAY_ACCESS_REL2



TO_ACCESSFROM_RAILWAY



Relationship class





TR_RAILWAY_REF_REL1



TO_REFFROM_RAILWAY



Relationship class





TR_RAILWAY_REF_REL2



TO_REFFROM_RAILWAY



Relationship class





TR_RAILWAY_BRIGE_REL



TO_BRIDGEFROM_RAILWAY

TR_RAILWAYTRANS_IDTRANS_ID

TR_BRIDGEName

Relationship class





TR_RAILWAY_DAM_REL



TO_DAMFROM_RAILWAY


TR_DAMName

Relationship class





TR_RAILWAY_DEVICE_REL



TO_DEVICEFROM_RAILWAY



Relationship class





TR_RAILWAY_MP_REL



TO_MPFROM_RAILWAY


TR_MILE_MARKERName

Relationship class





TR_RAILWAY_BORDERLINE_REL



TO_BORDERLINEFROM_RAILWAY



Relationship class





TR_RAILWAY_SIGN_REL



TO_SIGNFROM_RAILWAY


TR_SIGNName

Relationship class





TR_RAILWAY_CONTACT_REL



TO_CONTACTFROM_RAILWAY




Relationship class











Relationship class





TR_ACCESS_INT_REL



TO_INTFROM_ACCESS



Relationship class










TR_LAUNCH_POINTName


Relationship class





TR_ROADWAY_ACCESS_REL1



TO_ACCESSFROM_ROADWAY

TR_ROADWAYTRANS_IDTRANS_ID1


Relationship class





TR_ROADWAY_ACCESS_REL2



TO_ACCESSFROM_ROADWAY



TableTR_BRIDGE

Relationship class





TR_ROADWAY_BRIGE_REL



TO_BRIDGEFROM_ROADWAY

TR_ROADWAYTRANS_IDTRANS_ID

TR_BRIDGEName

Relationship class





TR_ROADWAY_DAM_REL



TO_DAMFROM_ROADWAY


TR_DAMName

Point feature class

TR_DAM

Relationship class





TR_ROADWAY_DEVICE_REL



TO_DEVICEFROM_ROADWAY




Relationship class





TR_ROADWAY_FTURN_REL



TO_TURNFROM_ROADWAY

TR_ROADWAYTRANS_IDTRANS_ID_FROM

TR_TURNName

Relationship class





TR_ROADWAY_TTURN_REL



TO_TURNFROM_ROADWAY

TR_ROADWAYTRANS_IDTRANS_ID_TO

TR_TURNName

TableTR_TURN

Relationship class





TR_ROADWAY_REF_REL1



TO_REFFROM_ROADWAY



Relationship class





TR_ROADWAY_REF_REL2



TO_REFFROM_ROADWAY



Point feature class

TR_MODE_CONNECTORTableTR_MODE_INTERSECTION

Point feature class

TR_ELEVATED_CROSSING

Relationship class








TO_INTFROM_REF



Relationship class





TR_ROADWAY_BORDER_REL



TO_BORDERLINEFROM_ROADWAY

TR_ROADWAYSEGIDSEGID



Relationship class





TR_ROADWAY_COUNT_REL



TO_COUNTFROM_ROADWAY


TR_TRAFFIC_COUNTName

TableTR_TRAFFIC_COUNT

Relationship class





TR_ROADWAY_INVENTORY_REL



TO_INVENTORYFROM_ROADWAY


TR_STREET_INVENTORYName

TableTR_STREET_INVENTORY

Relationship class





TR_ROADWAY_LANE_REL



TO_LANEFROM_ROADWAY


TR_STREET_LANEName

Relationship class





TR_ROADWAY_LWC_REL



TO_LWCFROM_ROADWAY


TR_LOW_WATER_CROSSINGName

TableTR_STREET_LANE

Point feature class

TR_LOW_WATER_CROSSING

Relationship class





TR_ROADWAY_INT_REL



TO_INTFROM_ROADWAY


TR_STREET_INTERSECTIONName

Point feature class

TR_STREET_INTERSECTION

Relationship class





TR_LANE_BARRIER_REL



TO_BARRIERFROM_LANE

TR_STREET_LANELANE_IDLANE_ID

TR_STREET_BARRIERName

TableTR_STREET_BARRIER

Relationship class





TR_LANE_MEDIAN_REL



TO_MEDIANFROM_LANE


TR_STREET_MEDIANName

TableTR_STREET_MEDIAN

Relationship class





TR_LANE_RESTRICT_REL



TO_RESTRICTFROM_LANE


TR_STREET_LANE_RESTRICTIONName

TableTR_STREET_LANE_RESTRICTION

Relationship class





TR_LANE_SHOULDER_REL



TO_SHOULDERFROM_LANE


TR_STREET_SHOULDERName

TableTR_STREET_SHOULDER

Relationship class





TR_INT_CROSS_REL



TO_CROSSFROM_INT

TR_STREET_INTERSECTIONINT_IDINT_ID

TR_CROSS_STREETName

TableTR_CROSS_STREET

Relationship class





TR_CROSS_SIDE_REL1



TO_SIDEFROM_CROSS

TR_CROSS_STREETTRANS_SIDE_ID1TRANS_SIDE_ID

TR_TRANS_SIDEName

Relationship class





TR_CROSS_SIDE_REL2



TO_SIDEFROM_CROSS

TR_CROSS_STREETTRANS_SIDE_ID2 TRANS_SIDE_ID

TR_TRANS_SIDEName

TableTR_TRANS_SIDE

Relationship class





TR_TRANS_SIDE_REL



TO_SIDEFROM_NAME

TR_ROADWAY_NAMENAME_IDNAME_ID

TR_TRANS_SIDEName

TableTR_ROADWAY_NAME

Relationship class





TR_TRANS_RANGE_REL



TO_RANGEFROM_SIDE

TR_TRANS_SIDETRANS_SIDE_IDTRANS_SIDE_ID

TR_ADDRESS_RANGEName

TableTR_ADDRESS_RANGE

Line feature class TR_ROADWAY

Relationship class





TR_ROADWAY_LZ_REL



TO_LZFROM_ROADWAY


TR_LANDING_ZONEName

Point feature class

TR_LANDING_ZONE

Point feature class

TR_MILE_MARKER

Relationship class





TR_ROADWAY_SIDE_REL



TO_SIDEFROM_ROADWAY


TR_TRANS_SIDEName

TableTR_TRANS_SIDE

Relationship class





TR_ROADWAY_SIGN_REL



TO_SIGNFROM_ROADWAY


TR_SIGNName

Point feature class

TR_SIGN

Relationship class





TR_ROADWAY_TRANSIT_STOP_REL



TO_TRANSIT_STOPFROM_ROADWAY


TR_TRANSIT_STOPName

Point feature class

TR_TRANSIT_STOP


TableTR_CONTACT _ASSOC

Relationship class











Relationship class





TR_ROADWAY_SENSOR_REL



TO_SENSORFROM_ROADWAY


TR_STREET_SENSORName

Point feature class

TR_STREET_SENSOR

Relationship class





TR_ROADWAY_SIGNAL_REL



TO_SIGNALFROM_ROADWAY


TR_TRAFFIC_SIGNALName

Point feature class

TR_TRAFFIC_SIGNAL

Relationship class





TR_ROADWAY_TOLL_REL



TO_TOLLFROM_ROADWAY


TR_TOLL_PLAZAName

Point feature class

TR_TOLL_PLAZA

Relationship class





TR_SIGNAL_PED_REL



TO_PEDFROM_SIGNAL

TR_TRAFFIC_SIGNALSIGNAL_IDSIGNAL_ID

TR_PEDESTRIAN_SIGNALName

TableTR_PEDESTRIAN_SIGNAL

Relationship class





TR_ROADWAY_MP_REL



TO_MPFROM_ROADWAY


TR_MILE_MARKERName

Relationship class





TR_ROADWAY_CONTACT_REL



TO_CONTACTFROM_ROADWAY



Relationship class





TR_ROADWAY_PARATRANSIT_STOP_REL



TO_PARATRANSIT_STOPFROM_ROADWAY


TR_PARATRANSIT_STOPName

Point feature class

TR_PARATRANSIT_STOP

Relationship class





TR_ROADWAY_SCHOOL_STOP_REL



TO_SCHOOL_STOPFROM_ROADWAY


TR_SCHOOL_STOPName

Point feature class

TR_SCHOOL_STOP

TableTR_COMMONPLACE _NAME

Relationship class











Relationship class





TR_ACCESS_INT_REL



TO_INTFROM_ACCESS



Relationship class










TR_LAUNCH_POINTName


Relationship class





TR_WATERWAY_ACCESS_REL1



TO_ACCESSFROM_WATERWAY

TR_WATERWAYTRANS_IDTRANS_ID1


Relationship class





TR_WATERWAY_ACCESS_REL2



TO_ACCESSFROM_WATERWAY



Relationship class





TR_WATERWAY_REF_REL1



TO_REFFROM_WATERWAY



Relationship class





TR_WATERWAY_REF_REL2



TO_REFFROM_WATERWAY






Relationship class








TO_INTFROM_REF



Line feature class TR_WATERWAY

Relationship class





TR_WATERBODY_ACCESS_REL



TO_ACCESSFROM_WATERBODY

TR_WATER_BODYWATER_IDACCESS_ID

TR_MODE_CONNECTORName

Polygon feature class TR_WATER_BODY

Relationship class





TR_WATERWAY_DAM_REL



TO_DAMFROM_WATERWAY

TR_WATERWAYTRANS_IDTRANS_ID

TR_DAMName


Relationship class





TR_WATERWAY_DEVICE_REL



TO_DEVICEFROM_WATERWAY




Relationship class





TR_WATERWAY_MP_REL



TO_MPFROM_WATERWAY


TR_MILE_MARKERName


Relationship class





TR_WATERWAY_SIDE_REL



TO_BORDERLINEFROM_WATERWAY




Relationship class





TR_WATERWAY_SIGN_REL



TO_SIGNFROM_WATERWAY


TR_SIGNName




Relationship class











Relationship class





TR_WATERWAY_CONTACT_REL



TO_CONTACTFROM_WATERWAY




Relationship class











Fairfax County Logical ModelFairfax County VirginiaLogical Domains03/02/07

Coded value domainGIS_TR_ACCESS_TYPEDescription

Field typeSplit policy

Merge policy

Short integerDefault valueDefault value

DescriptionCode

0 LAUNCH POINT

1 STATION

2 GATE

9 OTHER

Coded value domainGIS_TR_BARRIER_TYPEDescription


Merge policy


DescriptionCode

0 GUARDRAIL

1 ARRESTOR

2 SOUND BARRIER

3 FENCE

4 PARABOLIC CONCRETE CURB

5 EARTHEN BERM

6 VEGETATION

7 CURB

8 BOLLARD

9 DRIVABLE CURB

10 OTHER

Coded value domainGIS_TR_BORDERLINE_TYPEDescription


Merge policy


DescriptionCode

0 UNKNOWN

1 FIPS

2 JURISDICTION

3 JURISDICTION TYPE

4 ZIP

5 ZIP4

6 ESN

7 FIRE

8 POLICE

9 SHERIFF

10 SCHOOL

11 TAZ

12 VDOT

13 VSP

Coded value domainGIS_TR_BRIDGE_SOURCEDescription


Merge policy


DescriptionCode

0 VDOT

1 OTHER

Coded value domainGIS_TR_BRIDGE_TYPEDescription


Merge policy


DescriptionCode

0 ROADWAY

1 RAILWAY

2 PATHWAY

3 TUNNEL

Coded value domainGIS_TR_CONNECTOR_TYPEDescription


Merge policy


DescriptionCode

0 ROADWAY

1 PATHWAY

2 RAILWAY

3 WATERWAY

4 CROSSWALK

5 DRIVEWAY

6 PARKING LOT

7 PEDESTRIAN BRIDGE

8 NON-FEATURE

Coded value domainGIS_TR_CONST_MATERIALDescription


Merge policy


DescriptionCode

0 UNKNOWN

1 AC

2 C ALUM

3 CMP

4 HDPE

5 MASONRY ARCH

6 RCP

7 PVC

8 STEEL

9 OTHER

Coded value domainGIS_TR_CONTACT_TYPEDescription


Merge policy


DescriptionCode

0 PRIMARY

1 SECONDARY

2 EMERGENCY

3 MAINTENANCE

4 OWNER

5 OPERATOR

Coded value domainGIS_TR_COUNT_PERIODDescription


Merge policy


DescriptionCode

0 STATIC

1 DYNAMIC

9 OTHER

Coded value domainGIS_TR_COUNT_SOURCEDescription


Merge policy


DescriptionCode

0 VDOT

1 FCDOT

9 OTHER

Coded value domainGIS_TR_COUNT_TIMEDescription


Merge policy


DescriptionCode

0 AM

1 PM

2 OFF PEAK

Coded value domainGIS_TR_COUNT_TYPEDescription


Merge policy


DescriptionCode

0 TURN

1 FLOW

2 BOTH

Coded value domainGIS_TR_CROSSING_TYPEDescription


Merge policy


DescriptionCode

0 ROADWAY

1 RAILWAY

2 PATHWAY

3 WATERWAY

4 MULTIPLE

Coded value domainGIS_TR_DAM_TYPEDescription


Merge policy


DescriptionCode

0 EARTHEN

1 CONCRETE

Coded value domainGIS_TR_DATA_SOURCEDescription


Merge policy


DescriptionCode

0 UNKNOWN

1 CITY OF ALEXANDRIA

2 ARLINGTON COUNTY

3 DISTRICT OF COLUMBIA

4 FAIRFAX COUNTY

5 CITY OF FAIRFAX

6 CITY OF FALLS CHURCH

7 FEDERAL GOVERNMENT

8 FORT BELVIOR

9 LOUDOUN COUNTY

10 PRINCE WILLIAM COUNTY

11 STAFFORD COUNTY

12 STATE OF MARYLAND

13 STATE OF VIRGINIA

14 TOWN OF VIENNA

15 TOWN OF HERNDON

16 TOWN OF CLIFTON

17 TOWN OF OCCOQUAN

18 PRIVATE

19 REGIONAL

20 VDOT

Coded value domainGIS_TR_DEVICE_TYPEDescription


Merge policy


DescriptionCode

0 ROAD HUMP

1 SPEED BUMP

2 CUSHION

3 RUMBLE STRIP

4 PINCH

9 OTHER

Coded value domainGIS_TR_DIRECTION_RESTRICTDescription


Merge policy


DescriptionCode

0 BOTH

1 WITH

2 AGAINST

Coded value domainGIS_TR_DIRECTIONDescription


Merge policy

StringDefault valueDefault value

DescriptionCode

FT FROM_TO

TF TO_FROM

B BOTH

Coded value domainGIS_TR_EMER_USEDescription


Merge policy


DescriptionCode

0 NONE

1 SNOW

2 EVACUATION

Coded value domainGIS_TR_FIPSDescription


Merge policy

Long integerDefault valueDefault value

DescriptionCode


51013 ARLINGTON COUNTY


51059 FAIRFAX COUNTY

26496 CITY OF FAIRFAX


29008 FORT BELVOIR

51107 LOUDOUN COUNTY


51179 STAFFORD COUNTY



17376 TOWN OF CLIFTON

36648 TOWN OF HERNDON

58696 TOWN OF OCCOQUAN

81072 TOWN OF VIENNA

0 UNKNOWN

Coded value domainGIS_TR_GATEDescription


Merge policy


DescriptionCode

0 ALL

1 SOME

2 NONE

Coded value domainGIS_TR_JURIS_TYPEDescription


Merge policy


DescriptionCode

0 TOWN

1 CITY

2 COUNTY

3 STATE

4 FEDERAL

Coded value domainGIS_TR_JURISDICTIONDescription


Merge policy


DescriptionCode


2 ARLINGTON COUNTY


4 FAIRFAX COUNTY

5 CITY OF FAIRFAX



8 FORT BELVOIR

9 LOUDOUN COUNTY


11 STAFFORD COUNTY



14 TOWN OF CLIFTON

15 TOWN OF HERNDON

16 TOWN OF OCCOQUAN

17 TOWN OF VIENNA

0 UNKNOWN

Coded value domainGIS_TR_LANE_RESTRICT_DAYDescription


Merge policy


DescriptionCode

0 EVERYDAY

1 MONDAY

2 TUESDAY

3 WEDNESDAY

4 THURSDAY

5 FRIDAY

6 SATURDAY

7 SUNDAY

8 WEEKENDS

9 WEEKDAYS

Coded value domainGIS_TR_LANE_RESTRICT_TYPEDescription


Merge policy


DescriptionCode

0 HOV

1 TRANSIT

2 BIKE

Coded value domainGIS_TR_LANE_SIDEDescription


Merge policy


DescriptionCode

B BOTH

L LEFT

R RIGHT

Coded value domainGIS_TR_LANE_TYPEDescription


Merge policy


DescriptionCode

0 SOV

1 HOV 2

2 HOV 3

3 TRUCK PULLOFF

4 SHOULDER

5 AIRPORT TRAFFIC

6 BUS

7 BIKE

8 ALL

9 ALL BUT TRUCKS

Coded value domainGIS_TR_LANUCH_TYPEDescription


Merge policy


DescriptionCode

0 RAMP

1 PIER

2 DOCK

3 MARINA

4 BOAT HOUSE

9 OTHER

Coded value domainGIS_TR_LZ_TYPEDescription


Merge policy


DescriptionCode

0 HELIPORT

1 LZ

2 AIRPORT

Coded value domainGIS_TR_MEDIAN_TYPEDescription


Merge policy


DescriptionCode

0 VEGETATION

1 SWALE

2 EARTHEN BERM

3 GUARDRAIL

4 ARRESTOR

5 PARABOLIC CONCRETE CURB

6 ASPHALT

7 DIRT

8 GRAVEL

9 CURB

10 DRIVABLE SECTION

Coded value domainGIS_TR_RW_NAME_STATUSDescription


Merge policy


DescriptionCode

B BUILT

P PLANNED/PROPOSED

A APPROVED/RECORDED

H HISTORIC/EXPIRED

R RESERVED

Coded value domainGIS_TR_OWNER_TYPEDescription


Merge policy


DescriptionCode

0 PUBLIC

1 PRIVATE

Coded value domainGIS_TR_OWNERSHIPDescription


Merge policy


DescriptionCode

0 UNKNOWN


2 ARLINGTON COUNTY


4 FAIRFAX COUNTY

5 CITY OF FAIRFAX



8 FORT BELVIOR

9 LOUDOUN COUNTY


11 STAFFORD COUNTY



14 TOWN OF VIENNA

15 TOWN OF HERNDON

16 TOWN OF CLIFTON

17 TOWN OF OCCOQUAN

18 PRIVATE

19 REGIONAL

20 VDOT

Coded value domainGIS_TR_PARKING_LOT_CLASSDescription


Merge policy


DescriptionCode

0 PUBLIC

1 PRIVATE

Coded value domainGIS_TR_MAINT_RES

DescriptionField type

Split policyMerge policy


DescriptionCode

0 PRIVATE

1 MUNICIPAL

2 COUNTY

3 STATE

4 FEDERAL

5 VDOT

6 FAIRFAX COUNTY DOT

7 FAIRFAX COUNTY DPWES

8 FAIRFAX COUNTY PARK AUTHORITY

Coded value domainGIS_TR_PATH_BARRIER_TYPEDescription


Merge policy


DescriptionCode

0 GATE

1 BOLLARD

2 CONCRETE

9 OTHER

Coded value domainGIS_TR_PATH_TYPEDescription


Merge policy


DescriptionCode

0 MULTIPLE USE

1 BIKE

2 EQUESTRIAN

3 SIDEWALK

4 WALKING/HIKING

Coded value domainGIS_TR_PED_SIGNAL_TYPEDescription


Merge policy


DescriptionCode

0 STANDARD

1 COUNTDOWN

2 AUDIBLE

3 AUDIBLE/COUNTDOWN

Coded value domainGIS_TR_REG_STREET_CLASSDescription


Merge policy


DescriptionCode

AIR AIRPORT

CTY COUNTY ROAD

INT INTERSTATE

HWY STATE HIGHWAY

LOC LOCAL ROAD

Coded value domainGIS_TR_RR_STATUSDescription


Merge policy


DescriptionCode

A ACTIVE

I INACTIVE

P PROPOSED

Coded value domainGIS_TR_RR_TRACK_TYPEDescription


Merge policy


DescriptionCode

0 MAIN LINE

1 SIDING

2 SPUR

3 SWITCH YARD

Coded value domainGIS_TR_RR_TYPEDescription


Merge policy


DescriptionCode

METRO METRO

RAILWAY RAILWAY

BOTH METRO/RAILWAY

Coded value domainGIS_TR_RW_NAME_CATEOGRYDescription


Merge policy


DescriptionCode

P PRIMARY

AP ALT-PRIMARY

A ALIAS

Coded value domainGIS_TR_RW_NAME_SIDEDescription


Merge policy


DescriptionCode

L LEFT

R RIGHT

B BOTH

Coded value domainGIS_TR_SENSOR_TYPEDescription


Merge policy


DescriptionCode

0 CCTV

1 WEATHER

2 VEHICLE

3 LOOP

4 ACOUSTIC

5 TRAFFIC COUNT

Coded value domainGIS_TR_SIDEDescription


Merge policy


DescriptionCode

B BOTH

C CENTER

L LEFT

R RIGHT

N NONE

Coded value domainGIS_TR_SIGNAL_TYPEDescription


Merge policy


DescriptionCode

0 TRAFFIC

1 CAUTION

2 FLASHING RED

3 FLASHING RED/CAUTION

4 TURN ARROW

5 FIRE

6 ITS

7 PEDESTRIAN

9 OTHER

Coded value domainGIS_TR_PARKING_LOT_USE




DescriptionCode

0 SCHOOL

1 RETAIL

2 OFFICE

3 OTHER COMMERCIAL

4 PARKING GARAGE OR STRUCTURE

5 RECREATION

6 REST STOP

Coded value domain

GIS_TR_RR_CFCC




DescriptionCode

B00Railroad, major and minor categories unknown , Not present in

Dynamap

B01 Railroad track, not in tunnel or underpassing

B02 Railroad track, in tunnel

B03 Railroad track, underpassing

B10 Railroad Main Track, major category

B11 Railroad main track, not in tunnel or underpassing

B12 Railroad main track, in tunnel

B13 Railroad main track, underpassing

B20 Railroad spur track, major category

B21 Railroad spur track, not in tunnel or underpassing

B22 Railroad spur track, in tunnel

B23 Railroad spur track, underpassing

B30 Railroad yard track, major category

B31 Railroad yard track, not in tunnel or underpassing

B32 Railroad yard track, in tunnel

B33 Railroad yard track, underpassing

B40Railroad ferry crossing, route over water used by ships carrying

train cars to connecting railroads on opposite shores

B42 Subway or Metroline

B50Other rail line; major category used alone when the minor category

could not be determined

B51Carline, a track for streetcars , trolleys, and other mass transit rail

systems

B52 Cog railroad, incline railway, or logging tram

Coded value domainGIS_TR_RR_SERVICE_TYPE




DescriptionCode

0 COMMUTER

1 FREIGHT

2 AMTRACK

3 FREIGHT AND AMTRACK

4 FREIGHT AND COMMUTER

5 FREIGHT, AMTRACK AND COMMUTER

Coded value domainGIS_TR_SIGN_TYPE




DescriptionCode

0 STOP

1 4-WAY

2 YEILD

3 WIEGHT LIMIT

4 POSTING SIGN

5 PEDESTRIAN CROSSING

6 PEDESTRIAN FINE

7 REVERSIBLE LANE

8 LOW WATER CROSSING

9 NO WAKE

10 DEPTH MARKER

11 NAVIGATION CHANNEL MARKER

12 LOCATION REFERENCE (INCLUDING MILE MARKER)

13 LIGHTED BUOY

14 DAY MARKER BUOY

15 VARIABLE MESSAGE

16 NO U-TURN

Coded value domainGIS_TR_STATEDescription


Merge policy


DescriptionCode

DC DC

MD MD

VA VA

Coded value domainGIS_TR_STATION_TYPEDescription


Merge policy


DescriptionCode

0 COMMUTER BUS

1 RAIL

2 METRO

3 AIRPORT

4 COMMUTER BUS AND METRO

5 COMMUTER BUS AND RAIL

6 AUTO AND COMMUTER BUS

7 COMMERCIAL

Coded value domainGIS_TR_STATUSDescription


Merge policy


DescriptionCode

A ACTIVE

I INACTIVE

P PROPOSED

Coded value domainGIS_TR_STREET_STATUSDescription


Merge policy


DescriptionCode

B BUILT

P PLANNED/PROPOSED

A APPROVED/RECORDED

Coded value domainGIS_TR_STREET_SUFFIX_DIRDescription


Merge policy


DescriptionCode

EB EASTBOUND

NB NORTHBOUND

SB SOUTHBOUND

WB WESTBOUND

IL INNER LOOP

OL OUTERLOOP

Coded value domainGIS_TR_STREET_SUFFIXDescription


Merge policy


DescriptionCode

E EAST

N NORTH

S SOUTH

W WEST

NE NORTHEAST

NW NORTHWEST

SE SOUTHEAST

SW SOUTHWEST

Coded value domainGIS_TR_STREET_AUTH




DescriptionCode

0 ALL

1 BUS

2 NO TRUCK

3 PUBLIC SAFETY ONLY

4 MAINTENANCE AND PUBLIC SAFETY

Coded value domain

GIS_TR_STREET_CFCCDescription


Merge policy


DescriptionCode

A10 Primary road with limited access , major category

A11 Primary road with limited access or interstate highway , unseparated

A12 Primary road with limited access or interstate highway , unseparated, in tunnel

A13 Primary road with limited access or interstate highway , unseparated, underpassing

A14 Primary road with limited access or interstate highway , unseparated, with rail line in center

A15 Primary road with limited access or interstate highway , separated

A16 Primary road with limited access or interstate highway , separated, in tunnel

A17 Primary road with limited access or interstate highway , separated, underpassing

A18 Primary road with limited access or interstate highway , separated, with rail line in center

A20 Primary Highways without limited access , major category

A21 Primary road without limited access , US highways, unseparated

A22 Primary road without limited access , US highways, unseparated, in tunnel

A23 Primary road without limited access , US highways, unseparated, underpassing

A24 Primary road without limited access , US highways, unseparated, with rail line in center

A25 Primary road without limited access , US highways, separated

A26 Primary road without limited access , US highways, separated, in tunnel

A27 Primary road without limited access , US highways, separated, underpassing

A28 Primary road without limited access , US highways, separated, with rail line in center

A30 Secondary state and county highways , major category

A31 Secondary and connecting road , state highways, unseparated

A32 Secondary and connecting road , state highways, unseparated, in tunnel

A33 Secondary and connecting road , state highways, unseparated, underpassing

A34 Secondary and connecting road , state highways, unseparated, with rail line in center

A35 Secondary and connecting road , state highways, separated

A36 Secondary and connecting road , state highways, separated, in tunnel

A37 Secondary and connecting road , state and county highways , separated, underpassing

A38Secondary and connecting road , state and county highway , separated, with rail line in

center

A40 Local, neighborhood, rural road, city street, major category

A41 Local, neighborhood, and rural road, city street, unseparated

A42 Local, neighborhood, and rural road, city street, unseparated, in tunnel

A43 Local, neighborhood, and rural road, city street, unseparated, underpassing

A44 Local, neighborhood, and rural road, city street, unseparated, with rail line in center

A45 Local, neighborhood, and rural road, city street, separated

A46 Local, neighborhood, and rural road, city street, separated, in tunnel

A47 Local, neighborhood, and rural road, city street, separated, underpassing

A48 Local, neighborhood, and rural road, city street, separated, with rail line in center

A50 Vehicular trail, road (4WD) vehicle, major category

A51 Vehicular trail, road passable only by 4WD vehicle, unseparated

A52 Vehicular trail, road passable only by 4WD vehicle, unseparated, in tunnel

A53 Vehicular trail, road passable only by 4WD vehicle, unseparated, underpassing

A60Special road feature, major category used when the minor category could not be

determined

A61 Cul-de-sac, the closed end of a road that forms a loop or turn -around

A62 Traffic circle, the portion of a road or intersection of roads forming a roundabout

A63 Access ramp, the portion of a road that forms a cloverleaf or limited -access interchange

A64Service drive, road that provides access to businesses , facilities, and rest areas along

limited-access highway

A65Ferry crossing, the representation of a route over water that connects roads on opposite

shores

A66 Ferry crossing, Passenger, Year Round

A68 Ferry Crossing, Vehicular, Seasonal

A69 Ferry Crossing, Vehicular, Year-Round

A70Other thoroughfare, major category used when the minor category could not be

determined

A71 Walkway or trail for pedestrians , usually unnamed

A72 Stairway, stepped road for pedestrians , usually unnamed

A73Alley, road for service vehicles , usually unnamed, located at the rear of buildings and

property

A74Driveway or service road , usually privately owned and unnamed , used as access to

residences, etc., or as access to logging areas, etc.

A75 Road, Parking Area

Coded value domain

GIS_TR_STREET_CLASS




DescriptionCode

EXPEXPRESSWAY (ALWAYS DIVIDED WITH A CONTINUOUS WIDE GRASSY MEDIAN ,

FOUR TO EIGHT LANES, NO ABUTTING LAND USE, FEW SIGNALS OR INTERSECTIONS, NO STOP SIGNS)

FREFREEWAY (INTERSTATE, LIMITED ACCESS, FOUR OR MORE LANES, NO ABUTTING

LAND USE, NO SIGNALS OR AT GRADE INTERSECTIONS )

PKYPARKWAY (MOSTLY LIMITED ACCESS, USUALLY DIVIDED, TWO TO FOUR LANES, NO TRUCKS, SHARPER CURVES AND GRADES THAN FREEWAY , NO SIGNALS OR

STOP SIGNS)

MAAMAJOR ARTERIAL (ALWAYS DIVIDED WITH A WIDE GRASSY MEDIAN , FOUR TO

EIGHT LANES, TWO OR MORE TURN LANES AT INTERSECTIONS , NO STOP SIGNS)

MEAMEDIUM ARTERIAL (USUALLY DIVIDED, WITH A NARROW GRASSY OR PAINTED MEDIAN OR CONCRETE BARRIER , FOUR TO SIX LANES, NO STOP SIGNS, MORE MEDIAN BREAKS THAN MAJOR ARTERIAL , ALMOST ALWAYS HAS TURN LANES )

MIAMINOR ARTERIAL (RARELY DIVIDED, MAY HAVE PAINTED MEDIAN , TWO TO FOUR

LANES, USUALLY HAS TURN LANES)

COL COLLECTOR (TWO LANES, HAS SOME DRIVEWAYS, MAY HAVE TURN LANES)

LOCLOCAL (TWO LANES, LOTS OF DRIVEWAYS, RARELY WIDENED AT INTERSECTIONS ,

ALMOST ALWAYS HAS STOP SIGNS )

RAMRAMP (HIGH-SPEED RAMP (FREEWAY-TO-FREEWAY CONNECTION), ON RAMP, OFF

RAMP)

ALY ALLEY

CRO CROSSOVER

STU STUB

MRG MERGE

Coded value domain

GIS_TR_STREET_SOURCE




DescriptionCode

50 CAPTURED VIA GPS

100 CAPTURED FROM DIGITAL ORTHOPHOTOGRAPHY

150CAPTURED FROM DIGITAL ORTHOPHOTOGRAPHY HOWEVER THE ROAD WAS STILL UNDER

CONSTRUCTION.

200 CAPTURED FROM EXISTING DATA ON 1:2400 PARCEL MAPS

230CAPTURED FROM EXISTING DATA ON 1:2400 PARCEL MAPS HOWEVER THE EXACT PLACEMENT

CAN NOT BE FINALIZED WITHOUT FURTHER RESEARCH . AN EXAMPLE OF THIS IS ON ROYAL LANE ON MAP 49-3. THE ACCESS POINT TO ROUTE 29 NEEDS TO BE DETERMINED.

500 CAPTURED FROM 1:48000 BASE MAP. NO OTHER ACCURATE SOURCE AVAILABLE .

998THE EDGE OF PAVEMENT GOES OUTSIDE THE DEDICATED RIGHT -OF-WAY. THE COUNTY WILL

MAKE THE FINAL SOURCE STATEMENT UPDATE .

999SOURCE CODE TO INDICATE THAT COUNTY STAFF SHOULD REVISIT THIS AREA DURING THE QC

PROCESS. A QUESTION THAT COULD NOT BE RESOLVED BY BAKER EXISTS IN THE DATA .

Coded value domainGIS_TR_STREET_INCLINATIONDescription


Merge policy


DescriptionCode

0 0 - 5%

1 5 - 10%

2 10 - 20%

3 > 20%

Coded value domainGIS_TR_STREET_PREFIXDescription


Merge policy


DescriptionCode

E EAST

N NORTH

S SOUTH

W WEST

Coded value domainGIS_TR_STREET_RANGE_TYPEDescription


Merge policy


DescriptionCode

A ACTUAL

T THEORETICAL

Coded value domainGIS_TR_STREET_TYPEDescription


Merge policy


DescriptionCode

AL ALLEY

AV AVENUE

BV BOULEVARD

BW BELTWAY

CE CENTER

CI CIRCLE

CL CLUSTER

CR CORRIDOR

CT COURT

CV COVE

DR DRIVE

GR GREEN

GV GROVE

HT HEIGHTS

HY HIGHWAY

LA LANE

LD LANDING

LP LOOP

NK NOOK

PA PATH

PI PIKE

PK PARK

PL PLACE

PS PASS

PW PARKWAY

PZ PLAZA

RD ROAD

RI RIDGE

RN RUN

RW ROW

SQ SQUARE

ST STREET

TC TRACE

TE TERRACE

TP TURNPIKE

TR TRAIL

VW VIEW

WK WALK

WY WAY

CMNS COMMONS

KNLS KNOLLS

XING CROSSING

Coded value domainGIS_TR_STREET_USPSDescription


Merge policy


DescriptionCode

ALY ALLEY

AVE AVENUE

BLVD BOULEVARD

BLTWY BELTWAY

CTR CENTER

CIR CIRCLE

CL CLUSTER

CORR CORRIDOR

CT COURT

CV COVE

DR DRIVE

GRN GREEN

GRV GROVE

HTS HEIGHTS

HWY HIGHWAY

LN LANE

LNDG LANDING

LOOP LOOP

NK NOOK

PATH PATH

PIKE PIKE

PARK PARK

PL PLACE

PASS PASS

PKWY PARKWAY

PLZ PLAZA

RD ROAD

RDG RIDGE

RUN RUN

ROW ROW

SQ SQUARE

ST STREET

TRCE TRACE

TER TERRACE

TPKE TURNPIKE

TRL TRAIL

VW VIEW

WALK WALK

WAY WAY

CMNS COMMONS

KNLS KNOLLS

XING CROSSING

Coded value domainGIS_TR_SURF_TYPEDescription


Merge policy


DescriptionCode

0 UNKNOWN

1 ASPHALT

2 BRICK

3 COBBLESTONE

4 CONCRETE

5 DIRT

6 GRASS

7 GRAVEL

8 METAL

9 WATER

10 WOOD

11 WOOD CHIP

Coded value domainGIS_TR_TRANS_MODEDescription


Merge policy


DescriptionCode

0 ROADWAY

1 RAILWAY

2 PATHWAY

3 WATERWAY

4 CONNECTOR

Coded value domainGIS_TR_TURN_DAYDescription


Merge policy


DescriptionCode

0 SAME ALL DAYS

1 MONDAY

2 TUESDAY

3 WEDNESDAY

4 THURSDAY

5 FRIDAY

6 SATURDAY

7 SUNDAY

8 WEEKENDS

9 WEEKDAYS

10 SPECIAL EVENT

Coded value domainGIS_TR_TURN_RESTRICTDescription


Merge policy


DescriptionCode

0 NO CAR

1 NO TRUCK

9 OTHER

Coded value domainGIS_TR_TURN_STATUSDescription


Merge policy


DescriptionCode

0 NORMAL

1 EMERGENCY

Coded value domainGIS_TR_TURN_TYPEDescription


Merge policy


DescriptionCode

1 LEFT TURN

2 RIGHT TURN

3 STRAIGHT AHEAD

4 U-TURN

0 NO TURN

Coded value domainGIS_TR_WATER_BODY_TYPEDescription


Merge policy


DescriptionCode

0 STORMWATER POND

1 LAKE

2 WETLAND

9 OTHER

Coded value domainGIS_TR_WATER_TYPEDescription


Merge policy


DescriptionCode

0 NAVIGABLE CHANNEL

1 STREAM

Coded value domainGIS_TR_YN_CHARDescription


Merge policy


DescriptionCode

N NO

Y YES

Coded value domainGIS_TR_YN_NUMDescription


Merge policy


DescriptionCode

0 NO

1 YES

Coded value domainGIS_TR_WARNING_TYPE




DescriptionCode

0 NONE

1 PASSIVE

2 FLASHING LIGHTS

3 FLASHING LIGHTS AND BELL

4 CANTILEVER FLASHING LIGHTS

5 FLASHING LIGHTS AND GATE

6 TRAFFIC SIGNAL

Coded value domain

GIS_TR_WATER_CFCC




DescriptionCode

H00 Water feature, classification unknown or not elsewhere classified

H01 Shoreline of perennial water feature

H02 Shoreline of intermittent water feature

H10 Stream boundary, major category

H11 Perennial stream or river

H12 Intermittent stream, river, or wash

H13 Braided stream or river

H20 Canal, ditch, or aqueduct

H21 Perennial canal, ditch, or aqueduct

H22 Intermittent canal, ditch, or aqueduct

H30Lake or pond; major category used when the minor category could not be

determined

H31 Perennial lake or pond

H32 Intermittent lake or pond

H40 Reservoir; major category used when the minor category could not be determined

H41 Perennial reservoir

H42 Intermittent reservoir

H50Bay, estuary, gulf, sound, sea, or ocean; major category used when the minor

category could not be determined

H51 Bay, estuary, gulf, or sound

H53 Sea or ocean

H59 GDT Shoreline

H60 Gravel pit or quarry filled with water

H70 Nonvisible water area definition boundary ; used to separate named water areas

H71 USGS closure line; used as maritime shoreline

H72 Census water center line ; computed to use as a median positional boundary

H73Census water boundary , international in waterways or at 10-mile limit; used as an

area measurement line

H74Census water boundary separating inland from coastal or Great Lakes ; used as an

area measurement line

H75Census water boundary separating coastal water from territorial sea at the 3-mile

limit; used as an area measurement line

H80Special water feature ; major category used when the minor category could not be

determined

Logical Model Characteristics

Contains point, polyline, polygon, boundary, and other features

Includes 53 primary tables Incorporates raster imagery Provides a non-asset management focus Introduces a “connector” polyline feature for use in

routing Meets nearly all needs of Fairfax County agencies

and VDOT Allows incremental adoption by other regional

jurisdictions Supports point addressing and integration with

County’s Master Address Repository (MAR) for CAD

Issues and Next Steps 911 Dispatch requires a complete network of both

planned and actual roads for public safety incident response, and this requirement will necessitate a change in current County street centerline updating procedures (three stage approach)

A variety of relatively minor anomalies with the current enterprise centerline will need to be resolved

No single source of data exists to populate the new model

Multiple existing sources and techniques will need to be utilized to build and maintain some portions of the new transportation network database; new sources and procedures will also be required to populate other data elements

Issues and Next Steps – con’t

Some County agencies have unique centerline requirements because of their current COTS software, and some software/procedural modifications may be required

CAD AVRR routines emphasize roadway routing and may not be sophisticated enough to effectively use all modes and data included in the transportation network model

Regional data will be considerably less detailed than Fairfax County data

Next Steps Produce physical data model Determine data gaps Prepare data migration plan for existing data

sources Craft development plan for missing data Generate statement of work to produce data

required for transportation network database and AVRR factors

Prepare data procurement RFP Evaluate current 911 CAD layers for migration Prepare CAD conversion statement of work and RFP

Presented by:Jim Fries

Executive Consultant PlanGraphics, Inc.

[email protected]

and in absentia

Brendan Ford Application Development Manager

Fairfax County Department of Information Technology Geographic Information Services

[email protected]

Documents

Development of an Enterprise Transportation Data Model for Fairfax County, Virginia Presented by: