PowerPoint Presentation

OutlineIntroductionObjectivesAnalysisDesignBOQ RecommendationRoad Description The Deir Sharaf-Bazzarya Road is considered a part of the national highway, and the longest one the West Bank.

Which is Highway 60 that connects between Jenin in the north up to Hebron in the south, passing through most governorates of the West Bank.

The length of Deir Sharaf-Bazzarya segment after design is 7.67Km.Objectives General evaluation for existing road.

Design all details related to the road.

Provide proper drainage system design according to the standards.

Prepare Bill Of Quantities (BOQ) and costs.

Geometric design of the road to accomplish the standards, taking in the consideration as possible as the existing right of way.

BEFOREAFTERRoad Issues Faced in Right of wayTraffic StudiesThree Counts Are Conducted:

In year 2000/2001 (6:00am-6:00m) for two ways.Tuesday 26/8/2008 (6:00am-6:00pm) for two ways. Wednesday 27/8/2008 (6:00am-6:00pm) for two ways. Wednesday 16/3/2011 (7:00am-9:00am & 3:00pm-5:00pm) for two ways.Results of traffic countsDate of Count(Peak Hour)PHPHV (Veh/hr)2000-20013:30 4:30 PM5712008Tue3:00 4:00 PM242Wed8:00 9:00 AM26520114:00 5:00 PM328Growth Rate & PHV Analysis Sum of 4 hr. in year 2000/2001 (7:00am-9:00am & 3:00pm-5:00pm) for two ways = 1890 veh. Sum of 4 hr. in year 2011 (7:00am-9:00am & 3:00pm-5:00pm) for two ways = 2841 veh.

Annual growth rate between years (2000-2008) is 2464=5052(1+i)8 -8.58%. This is not logical value.

Annual growth rate between years (2000-2011) is 2841=1890(1+i)11 3.77%. This is a logical value.

In This Project, this value will be applied for next 20 years.Thus, the Peak hour Volume after 20 years (in 2031) = 328(1+0.037)20 = 678 veh/hr.

Design CriteriaFunctional classification Based on AASHTO, the road can be classified as Rural Arterial road.Design Vehicle based on vehicle classifications and AASHTO recommendations, WB-15 is chosen to be the design vehicle. Design Speed The road is divided into four zones depending on the design speed:

Design Speed (Km/hr)Stations700+000 to 5+440405+440 to 6+060606+060 to 7+140507+140 to 7+670Level of Service

by analyzing the LOS for the existing two lane for a 20 years period, the LOS is founded to be C, which is not accepted for such road. So, the analysis is done based on multi lane (four lane) and founded to be B, which is suitable for such a road.Design Criteria for Horizontal CurvesMax. f Min. Radius(m)Design Speed(km/hr)0.15154700.2350400.17130600.199050Side Friction Factor (f): affected by Design Speed Based on AASHTO design Superelevation rate is 10% Minimum RadiusSuperelevation

Compound CurveSimple CurveReverse CurveDesign Criteria for Vertical CurvesTerrain Here in case of (Deir Sharaf - Bazzarya Road) the area can be categorized as rolling terrain, but in some of locations are classified as mountainous terrain.

Grade Since the terrain is rolling, in the project design the grade reach the max. grade which is 6%, and also the min. grade equal 0.5%. For mountainous terrain 8% maximum grade is selected.

Road Issues Faced in Geometric Design PhaseSharp Curves

The Right of way (R.O.W) is an old planned and may not be appropriate for the modern design.

ITERATION 1ITERATION 2

Cross Section Elements The cross section elements are designed based on AASHTO recommendation to be as follow:Lanes : 3.6 m Shoulder: 1.8 m Median: 3.6 m,(2m raised,0.8m inside shoulder for each side)Cross slopes: 2% (for traveled lanes) and 3% for shoulders.Side slopes: Cut(1:5), Fill(4:1).Mountable curb stones are used for median and raised islands. Cross Section DetailsGuard railDitchesCulvertsRetaining walls

Typical Cross SectionPavement DesignBased on geotechnical report results, 14 samples out of 20 were classified as A-6 or A-7, which indicates that 70% of the roadbed material is clayey soil and can't be used, so this materials must be changed and replaced by rock fill material.

Intersection DesignAll Intersections are designed on Civil3d software program.All intersections in this project are T intersections.The project contains 5 main intersections, which are:IntersectionNameAngle of entryAngle of exitFor enterFor exitR(m)Offset(m)TaperH:VR(m)Offset(m)TaperH:VAl-Naqura10575182.515:1152.515:1Sabastya 175105202.515:1182.515:1Sabastya 29090182.515:1182.515:1Burqa75105202.515:1182.515:1Bazzarya9090182.515:1182.515:1

Road Issues Faced in Intersection Design Phase

ITERATION 1ITERATION 2Drainage DesignHydrologic Analysis:

Five locations of culverts are determined depending on the geometric and hydrologic considerations of the road, each culvert will carry known amount of water coming from one or more catchment areas that analyzed and calculated by using AutoCAD Civil 3D Software.

The amounts of water were calculated by two methods:

1- Manually by using rational method equation.

2- Bentley Civil Storm Software which depends on modified rational method. By using (Nablus IDF-Curve (2005-2009)), The Results of Discharge Based on modified Rational method are tabulated in Table belowCatchment NameSub CatchmentCL0(ft)Tc(min)Q(m3/s)110.353666649.54.5720.367362537.60.92210.356627053.43.3820.370371745.90.89310.354978068.311.2820.356439343.51.7430.366267134.20.9940.360527250.21.65410.353751153.36.67510.359405239.81.88

The maximum discharge shown in catchment (3), sub-catchment ( 1 ) as shown in civil storm model below

Ditch CheckCulvert #Number of PipesCulvert STADesign D(mm)Slope (%)Velocity(m/s)Hw(m)110+00080021.830.94212+12014001.52.011.43333+68014001.52.401.65425+52014001.52.141.48516+72010001.52.381.40

Culvert Design ResultsItemUnitQuantityUnit price ($)Total price($)Earth WorksExcavationm3368378.6651841893Embankment constructionm3344742.7262068456Earth works 3910349Sub-Base And Base courseSub-base coursem335889.5518646012Base-coursem326138.7227705745Rock Fillm371779.15358895Sub-base and base course 1710652Bituminous ConstructionPrime Coat(MC)m2156712.861.52350697 cm thickness asphaltm2156712.86152350692Bituminous construction 2585762Miscellaneous Works Traffic signsNo.11710011700Curbstones for medianm1503020300600Curbstones for islandsm282185076Cat EyesNo.51141051140Guard Railm2720100272000Retaining Wallsm3116271701976590Longitudinal yellow traffic markingm15340230680Longitudinal white traffic markingm20453240906Object marking(Arrows)m2146.6991321Miscellaneous works 2690013Drainage system worksConcrete Ditchesm792050396000Proposed Culverts(D-80cm)m2545011250Proposed Culverts(D-40cm)m20030060000Proposed Culverts(D-100cm)m2550012500Proposed Culverts(D-140cm)m170600102000 Drainage system works581750 CostTotal 11478526 Recommendations1- Wide the right of way to be more free in design, especially in horizontal alignment, and design more smooth circular curves.

2- Survey some locations of the project.

3- Make a geotechnical report for side slope stability and use retaining wall if its required.

4- Take the land ownership issue in consideration for calculating the total budgeted cost of the project.