Engineering CollegeCivil Engineering Department

Jenin – Tubas Highway DesignTransportation Engineering Graduation Project

Supervisor : Dr. Khaled Al-Sahili

Prepared By :Emad Abu Hussein

Mohammad Abu Al-RobImran 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.

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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

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Traffic Studies

SummaryPeak Hour 2:00 PM – 3:00

PMPeak Hour volume

686 Veh/hr

Peak Hour Factor

0.907

A traffic counting is conducted(At Al-Shuhadah Intersection Eastern Leg)

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Design Hourly Volume (DHV)

1239 Veh/hr

Average Daily Traffic (ADT)

17700 Veh/day

Traffic Studies

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Design control and criteria

Functional classificationA Rural principal Arterial Highway.

Design VehicleWB-15 is chosen to be the design vehicle.

Design SpeedDesign speed is between 65 to 110 km/hr  

So, the design speed is chosen to be 80 Km/hr

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Design control and criteria

Level of Service

The appropriate LOS is C

LOS check The result LOS

Decision

Two Lanes D Not Acceptable

Four Lanes

B AcceptableTherefore, the recommendation is four-lane highway, two lanes in each direction.

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Pavement Design

Layer

CBR

Mr Ib/in2 a m

SB 40 17,000 0.12 0.9

BC 80 28,000 0.13 0.9

AS 450,000 0.44

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Pavement Design

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The resultsThe layer Asphal

tBase coarse

Sub base

SN 2.3 2.8 2.2The depth inch

5.5 4.5 -5.5Negative result then we don’t need to use sub base layer.The main structure number , SN = a1 D1+a2D2m2

=0.44*5.5+0.13*4.5*0.9 = 2.95Depth 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 layer Asphalt

Base coarse

The depth Inch (cm)

3(8) 16(40)

Pavement Design

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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% Rmin = 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 each2.Shoulder: 3 m for each3.Median: 2 m4.Cross slopes: 2% (for traveled lanes) and 4%

for shoulders.5.Side slopes: 1:2 Cross Section Details1.Guard rails & Retaining walls2.Ditches3.Culverts

Highway Geometric

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Highway Geometric

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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 intersectionThe intersections is designed according to AASHTO

(2004) Standards.

A Sample of intersection deign is shown:

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Intersection design

Item Unit

Quantity

Unit price ($)

Total price($)

cut m3 1,254,000

4 5,016,000

fill m3 682,300 10 6,823,000earth works cost 11,839,000

base-course m2 133,600 28 3,740,800base course cost 3,740,800

prime coat m2 230,400 0.9 207,3608 cm thickness

asphaltm2 226,350 10 2,263,500

bituminous construction cost 2,470,860traffic signs No

.132 100 13,200

curbstones m 32,000 25 800,000White Traffic

Markingm 8,000 2.7 21,600

Yellow Traffic Marking

m 64,000 2.7 172,800

Guard Rail m 6,500 120 780,000Ditch m 20,150 19 382,900

Retaining Wall m 6,350 300 1,905,000miscellaneous works cost 4,075,500

Total Cost 22,126,160 ($)

BOQ and Cost

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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 .

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