Engineering College Civil Engineering Department Jenin – Tubas Highway Design Transportation Engineering Graduation Project Supervisor : Dr. Khaled Al-Sahili.

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Presentation transcript:

Engineering College Civil Engineering Department Jenin – Tubas Highway Design Transportation Engineering Graduation Project Supervisor : Dr. Khaled Al-Sahili Prepared By : Emad Abu Hussein Mohammad Abu Al-Rob Imran Khader An-Najah National University

Introduction  Road Description  Jenin-Tubas Highway is a major road that connects the northern districts of Jenin and Tubas, with a length about 16 km.  The highway starts from Jenin City at Jannat Park Intersection, Al-Kfair Village, Aqqaba Village and ending at the north of Tubas City.  The following Google Earth picture describes the study case of the highway. 1

Introduction

Objectives 1.Geometric design using the AASHTO standards: a.Horizontal alignment b.Vertical alignment c.Cross sections 2. Providing the design details. 3. Capacity analysis and determining the number of lanes. 4. Pavement design. 5. Traffic singing and marking using local standards. 6. Bill of quantities 3

Traffic Studies Summary Peak Hour 2:00 PM – 3:00 PM Peak Hour volume 686 Veh/hr Peak Hour Factor A traffic counting is conducted (At Al-Shuhadah Intersection Eastern Leg) 4

Design Hourly Volume (DHV)1239 Veh/hr Average Daily Traffic (ADT)17700 Veh/day Traffic Studies 5

Design control and criteria Functional classification A Rural principal Arterial Highway. Design Vehicle WB-15 is chosen to be the design vehicle. Design Speed Design speed is between 65 to 110 km/hr So, the design speed is chosen to be 80 Km/hr 6

Design control and criteria Level of Service The appropriate LOS is C LOS checkThe result LOSDecision Two LanesDNot Acceptable Four LanesBAcceptable Therefore, the recommendation is four- lane highway, two lanes in each direction. 7

Pavement Design LayerCBRMr Ib/in2am SB4017, BC8028, AS450,

Pavement Design 9

The results The layerAsphaltBase coarseSub base SN The depth inch  Negative result then we don’t need to use sub base layer.  The main structure number, SN = a 1 D 1 +a 2 D 2 m 2 =0.44* *4.5*0.9 = 2.95  Depth of the pavement(D1) is 3 inch (8 cm)  Depth of the base course (D2) is 14 inch ( 35 cm); So use( 40 cm) After modification The layerAsphaltBase coarse The depth Inch (cm) 3(8)16(40) Pavement Design 10

Highway Geometric  Design Criteria for Horizontal Curves  Super elevation It is assumed to be 10 %  Radius As design speed equal 80 km/hr the superelevation equal 10%  R min = 210 m.  Design Criteria for Vertical Curves  Terrain the terrain is mountainous.  Grade max. grade = 7 %. 12

 The cross section elements are designed based on AASHTO recommendations: 1. Lanes : 3.6 m for each 2. Shoulder: 3 m for each 3. Median: 2 m 4. Cross slopes: 2% (for traveled lanes) and 4% for shoulders. 5. Side slopes: 1:2  Cross Section Details 1. Guard rails & Retaining walls 2. Ditches 3. Culverts Highway Geometric 13

Highway Geometric 14

Intersection design  There are several intersections in this highway. The three main intersections are: 1. Jannat Park intersection 2. Al-Zababda intersection 3. North Tubas intersection The intersections is designed according to AASHTO (2004) Standards. A Sample of intersection deign is shown: 15

Intersection design

ItemUnitQuantityUnit price ($)Total price($) cutm3m3 1,254,00045,016,000 fillm3m3 682,300106,823,000 earth works cost11,839,000 base-coursem2m2 133,600283,740,800 base course cost3,740,800 prime coatm2m2 230, ,360 8 cm thickness asphaltm2m2 226,350102,263,500 bituminous construction cost2,470,860 traffic signsNo ,200 curbstonesm32, ,000 White Traffic Markingm8, ,600 Yellow Traffic Markingm64, ,800 Guard Railm6, ,000 Ditchm20, ,900 Retaining Wallm6, ,905,000 miscellaneous works cost4,075,500 Total Cost22,126,160 ($) BOQ and Cost 17

Recommendations  The full 30m right of way should be used to upgrade the number of lanes.  Four travel lanes are suggested (two in each direction).  The road needs continuous maintenance.  Drainage system should be improved. 18