Civil Engineering Department

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Civil Engineering Department Design of Nablus
Tulkarm Highway Prepared by Ahmed Mohammed
Mustafa Anas Zeyad Belbeasi Under the
Supervision of Dr. Khaled Al Sahili Nablus-
Palestine Dec. 2010
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Introduction

• Road Description
• Nablus Tulkarm Highway is a major road that
  connects two of the major Palestinian cities
  Nablus and Tulkarm, with a length about 27 km.
• The study case of the road is located between two
  Israeli checkpoints Enab and Shefi Shomron
  checkpoints. with length is about 5.5 km.
• The following Google Earth picture describe the
  study case of the road.

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objectives

1. Evaluation of the exiting design
2. Redesign and improve the highway
3. Prepare Bill Of Quantities
4. Design all details related to the highway

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Traffic studies

• Three counts are conducted
• 1. Wed 2/6/2009 between 600 AM - 600 PM (Beit
  lead Intersection)
• 2. Wed 9/6/2009 between 600 AM - 600 PM
  (Tanib Factory)
• 3. Tue. 23/2/2010 between 300 - 500 PM (Tanib
  Factory)

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Results of traffic counts
The count PH PH PHV (Veh/hr) PHV (Veh/hr) PHF PHF
The count AM PM AM PM AM PM
Tanib Brick Factory count 745 - 845 215 - 315 575 637 0.887 0.862
Beit lead intersection count 730 830 315 415 370 362 0.840 0.856
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DHV

• DHV 0.1 ADT
• ?
• 
  
•  
•  ?

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Design control and criteria

• Functional classification
• Based on AASHTO, the highway can be classified
  as Rural Minor Arterial Highway
• Design Vehicle
• based on vehicle classifications and AASHTO
  recommendations, WB-62 is chosen to be the design
  vehicle
• Design Speed
• The highway is divided into three zones
  depending on the design speed
• From station 0000 to station 2700
  v 110 km/hr
• From station 2700 to station 3200
  v 100 km/hr
• From station 3200 to station 5421
  v 90 km/hr
•  

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Design control and criteria

• LOS
• by analyzing the LOS for the two lane (which
  is the existing ) for a 20 years period, the LOS
  is founded to be E, which is not accepted for
  such highway. So, the analysis is done based on
  four lane and founded to be B, which is suitable
  for such a highway.

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Pavement Design

• part one (from station 0000 to 1250, 1750 to
  2150, 3000 to 3400, and 4300 to 4700 )
  will be designed based on CBR value of 3, part
  two (from station 1250 to 1750, 2150 to
  3000, 3400 to 4300, and 4750 to 5420)
  will be designed based on CBR value of 20.

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Design Considerations

• Pavement performance
• ?PSI Pi Pt 2.
• Traffic
• Roadbed soil ( subgrade material ) and Material
  of construction and Environmental
• Reliability ( R 95 , S. 0.45 )

2.23 106
Layer Layer CBR Mr a m
BC BC 80 28,000 Ib/in2 0.133 0.9
SB SB 40 17,500 Ib/in2 0.12 0.9
AS AS 450,000 Ib/in2 0.44
SB Part 1 3 4500 Ib/in2
SB Part 2 20 12,900 Ib/in2
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PAVEMENT DESIGN USING AASHTO METHOD
SN4.7
Mr 4500
ESAL 2.23 106
R 95
S0 0.45
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Results
Surface layer thickness D1 (cm ) Surface layer thickness D1 (cm ) Base layer thickness D2 (cm ) Base layer thickness D2 (cm ) Subbase layer thickness D3 (cm ) Subbase layer thickness D3 (cm )
Part one Part one 10 10 40 40 40 40
Part two Part two 10 10 15 15 15 15
After Modification After Modification After Modification After Modification After Modification After Modification After Modification After Modification
Surface layer thickness D1 (cm ) Surface layer thickness D1 (cm ) Base layer thickness D2 (cm ) Base layer thickness D2 (cm ) Subbase layer thickness D3 (cm ) Subbase layer thickness D3 (cm ) Rockfill layer (cm)
Part one 10 10 20 20 20 20 50
Part two 10 10 15 15 15 15 0
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Design Criteria for Horizontal Curves

• Radius
• As design speed equal 110 km/hr the
  superelevation
• equal 6 ? Rmin 560 m.
• As design speed equal 100 km/hr the
  superelevation (Table 3.14
• Equal 6 ? Rmin 435 m.
  AASHTO
  2001)
• As design speed equal 90 km/hr the superelevation
• Equal 6 ? Rmin 335 m.
• Super elevation
• It is assumed to be 6
• Min. Length
• L min 3110 330 m (for v 110
  km/hr)
• L min 3100 300 m (for v 190
  km/hr)
• L min 390 270 m (for v 90
  km/hr)

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Results of Horizontal Curves
Type ID PC PT Radius (m) Speed (km/hr) Length (m)
Simple curves HC1 0270.85 0603.76 1050 110 333
Simple curves HC2 1128.69 1397.89 1300 110 269
Simple curves HC3 2253.33 2597.62 1700 110 344
Simple curves HC4 2833.89 3162.16 400 100 328
Simple curves HC5 3348..61 3692.58 400 90 343
Simple curves HC6 3811.25 4498 800 90 239
Simple curves HC7 4242.38 4578.16 700 90 353
Simple curves HC8 4682.98 5025.86 300 90 342
Simple curves HC9 5227.37 5421.05 400 90 192
Reverse curve HC10 0726.7 1029 800 110 158
Reverse curve HC10 0726.7 1029 800 110 144
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Design Criteria for Vertical Curves

• Terrain
• For Nablus Tulkarm Highway, the terrain where
  the road passes is level so, highway sight
  distance are generally long or can be satisfied.
• Grade
• Since the terrain is level, in the project
  design the grade doesn't reach the max. grade
  which is 4 , and also the min. grade is
  satisfied.

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Results of Vertical Curves
No. Type Length (m) St. of PVI G 1 G 2
1 Sag 150 0375.64 -1.76 -0.69
2 Crest 150 0545.35 -0.69 -1.43
3 Sag 150 0901.49 -1.43 -1.34
4 Crest 150 1625.00 -1.34 -1.84
5 Sag 150 1847.94 -1.84 -1.13
6 Sag 150 2382.85 -1.13 -1.07
7 Crest 150 2705.00 -1.07 -1.95
8 Sag 150 2934.04 -1.06 -1.95
9 Crest 150 3530.00 -1.38 -1.06
10 Sag 150 3980.28 -1.26 -1.38
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Cross Section Element Design

• The cross section elements are designed based on
  AASHTO recommendation to be as follow
• Lanes 3.6 m for each
• Shoulder 2.5 m for each
• Median 3 m
• Cross slopes 2 (for traveled lanes) and 4 for
  shoulders.
• Side slopes 13
• Sloped curb stones are used for median
• Cross Section Details
• Guard rail
• Ditches
• Culverts

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Typical cross sections for part one
Typical cross section for part two
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Intersection design

• All intersections in this project are T
  intersections.
• The project contains 4 main intersections, which
  are
• 1. Ramallah intersection
• 2. Beit lead intersection
• 3. Ramin intersection
• 4. Enab intersection
• The angle of all intersections is 90 ? Rmin 37
  m , with offset1.3 m, and taper 301
• Sample of intersection deign shown below.

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Ramallah intersection
Ramin intersection
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BOQ
No. Description Unit Quantity
1 Excavation C.M 63,881
2 Embankment C.M 26,507
3 Rock Fill C.M 29,746
4 Sub Base Sq. m 123,873
5 Base Course Sq. m 118,426
6 Prime Coat (MC 70) Sq. m 113,000
7 Asphalt Sq. m 112,369
8 Pipe Culverts 1m ? L.m 198
9 Guard Rail L.m 1480
10 Precast concrete Curb Stone L.m 9500
11 Ready mixed concrete C.M 1600
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Recommendations

• Adoption of suggested new design
• The Drainage system should be improved .
• Not to cot the trees that are located within the
  boundary of our road design, and replant these
  trees outside the road.
• Give the accurate priority of the road.
• make a maintenance program for the road

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THE END THANKS FOR YOUR ATTENTION