Outline

Board Direction Tasks Completed Recommendation

Board Direction

Approved motion from December 2008– Conceptually approve the 60% plans with the traffic

calming

– Widen path to 8 feet and move to edge of right-of-way where possible

– Discuss with GRU the feasibility of underground utilities

– Insure no additional stormwater impacts

– Refer issue to Bicycle/Pedestrian Advisory Board

Board Direction

Additional Requests– 3 Chicane model– 91st Street crash data– Leon County canopy road program

Path Widening/Relocation

Tasks Completed– Horticulturist and Arborist reviewed relocation

– Field meeting with Commissioner Byerly

– Meeting with affected property owners

Results – Relocated path south of NW 1st Place to back of right-

of-way

– Meandered path north of NW 1st Place and widened to the east (toward the road)

Path Widening/Relocation

Path Widening/Relocation

Path Widening/Relocation

Benefits– Additional space for landscaping

– Additional stormwater storage within the swales

Issues– Requires relocation of approximately 1600’ of fence

– Reconstruction of path• Some underbrush removal

• Potential adverse impacts to root systems

Underground Utility Discussion

Tasks Completed– Meeting with GRU (February 2nd)

– Utility coordination meeting (February 16th)

Discussion– Life-cycle cost of underground vs. overhead

– Types and locations of utilities along 91st

– Potential impacts

– Costs

Underground Utility Discussion Benefits

– Better conditions for canopy development

Issues:– Life-cycle: underground is cost-prohibitive

– Location: Cox Communications co-located on poles; AT&T and GRU water/waste water underground

– Impacts• GRU easement requirements

• Existing underground utilities

• Trees

– Costs (only for main line): GRU $1,000,000; Cox $450,000

Underground Utility Discussion County pays

– Approximately $1,450,000 for main line

– Plus cost of connections to homes

County cannot force utilities to move existing facilities underground

Stormwater Impacts

Tasks Completed– Kimley-Horn and Associates completed a drainage

analysis of basin– Analysis was performed based on 60% plans as

presented• 8’ wide multi-use path

• Proposed traffic calming features

Stormwater Impacts – Pre-Construction

Stormwater Impacts – Post-Construction

Bicycle/Pedestrian Advisory Board

Tasks Completed– Presented to BPAB on February 24, 2009

Results– BPAB recommended leaving path in place and

widen to 8’ where possible• Same recommendation as Citizen’s Advisory

Committee

Bicycle/Pedestrian Advisory Board

Benefits– Less likelihood of impacting trees as compared to

relocation

Issues– Requires reconstruction of sidewalk– Possible decrease in storage capacity of swales

Chicane Only Model

3 Chicane ModelChicane #1

3 Chicane ModelChicane #2

3 Chicane ModelChicane #3

Chicanes Only Model

Chicanes only model is not a viable option– Driveway conflicts– Sight distance issues

Crash History on 91st Street

Reviewed crash history– Data from 2002-2007

Standard practice to review crash history prior to beginning resurfacing, restoration and rehabilitation projects

May indicate problems with existing conditions

Crash History on 91st StreetCrash Type

Rear End

Head On

AngleLeft Turn

Right Turn

Side-swipe

Bike & Ped

Other TOTAL

2002 0 0 1 0 0 0 0 1 2

2003 2 0 0 0 0 0 0 0 2

2004 1 0 2 1 0 0 0 1 5

2005 1 0 1 0 0 0 0 0 2

2006 3 0 3 0 0 0 0 1 7

2007 2 1 0 0 0 0 0 1 4

TOTAL 9 1 7 1 0 0 0 4 22

Crash History on 91st Street

Summary of Speed Study

Summary of Speed Study

Location Traffic

Direction

Posted Speed (MPH)

Average Speed (MPH)

85th Percentile

Speed (MPH)

Percent of Vehicles > 45 MPH

NB 30 37 43 4.5% 1/4 Mile South of Newberry Road SB 30 33 38 0.1%

NB 30 35 40 1.5% 1/4 Mile North of SW 8th Avenue SB 30 36 41 2.4%

Relationship of Speeds & Crash Rate

Crash rates are lowest when posted speeds are at 85th percentile

Leon County Canopy Road Information

Nine designated scenic roads Mix of arterial, collector and

local roads

– Speed limits range from 30mph to 55mph

– Traffic volumes range from 2,000 ADT to 7,000 ADT

Mix of driving surfaces

Recommendation

Approve the 60% design plans as presented which include widening the existing multi-use path to 8’ and relocating the path to the edge of the right-of-way where feasible.

Direct staff to complete plans.

Questions ?