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Outline

Introduction. Objectives. Analysis. Design. Outline. BOQ . Recommendation. The Deir Sharaf-Bazzarya Road is considered a part of the national highway , and the longest one the West Bank.

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Outline

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  1. Introduction Objectives Analysis Design Outline BOQ Recommendation

  2. 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. Road Description

  3. 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. Objectives

  4. BEFORE Road Issues Faced inRight of way AFTER

  5. Three 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. Traffic Studies

  6. Results of traffic counts

  7. 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. Growth Rate & PHV Analysis

  8. Functional 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 Criteria

  9. 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. Level of Service

  10. Minimum Radius • Side Friction Factor (f): affected by Design Speed • Superelevation Based on AASHTO design Superelevation rate is 10% Design Criteria for Horizontal Curves

  11. Simple Curve Compound Curve Reverse Curve

  12. Terrain Here in case of (Deir Sharaf - Bazzarya Road) the area can be categorized as rollingterrain, 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. Design Criteria for Vertical Curves

  13. Sharp Curves The Right of way (R.O.W) is an old planned and may not be appropriate for the modern design. Road Issues Faced inGeometric Design Phase

  14. ITERATION 1 ITERATION 2

  15. 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 Details • Guard rail • Ditches • Culverts • Retaining walls Cross Section Elements

  16. Typical Cross Section

  17. Based 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. Pavement Design

  18. All Intersections are designed on Civil3d software program. • All intersections in this project are “T” intersections. • The project contains 5 main intersections, which are: Intersection Design

  19. ITERATION 1 Road Issues Faced in Intersection Design Phase ITERATION 2

  20. Hydrologic 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. Drainage Design

  21. By using (Nablus IDF-Curve (2005-2009)), The Results of Discharge Based on modified Rational method are tabulated in Table below

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

  23. Culvert Design Results Ditch Check

  24. 1- 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. Recommendations

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