Re-Design Of Nablus-Deir Sharaf Road Prepared by Enas Saleh Haneen Hetti Supervisor Prof.Sameer Abu-Eisheh.

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Presentation transcript:

Re-Design Of Nablus-Deir Sharaf Road Prepared by Enas Saleh Haneen Hetti Supervisor Prof.Sameer Abu-Eisheh

Outline 1- General information about the road. 2- Data Collections. 3- Analysis. 4- Design Control and criteria. 5- Geometric Design. 6- Traffic Control Device. 7- Design of intersections. 8- Bill of Quantities. 9- Summary.

General information about the road. Nablus-Deir Sharf road is a major road that connects Nablus city and Deir Sharf village and then branches to Tulkrem and Jenin. The study case of the road is starting from Deir Sharaf intersection and ending at Tunis intersection. with length is about 7 km and ROW is 30m. The road includes four major intersections; Deir Sharf, Quseen, Sheikh Mohammed bin Rashed Al-Maktoom and Tunis intersections

General information about the road. Start of the Road End of the Road

Data Collection problems which observed:  Problem and defects found in the pavement.  The design of the lanes of the road with limited capacity that causes safety problem.  Insufficient lane width, which result problems in the intersections.  At commercial and residential area, we did not observe parking lanes.  Restricted sight distance at exist certain regions.

Analysis By analyzing the LOS for the two lane (which is the existing ) for a 20 years period, the LOS is founded to be D, 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.

Analysis LOS at the Intersections. By using Syncro 2007 program. The result found for existing intersection.

Design control and criteria  Functional classification Nablus – Deir Sharf road is classified as an arterial; it has two regions; the urban area starting from Wadi At-Tuffah to Quseen intersection where the road can be classified as an urban arterial, and the rural area from Quseen intersection to Deir Sharf village where the road can be classified as a rural arterial. So the general classification of the road is suburban arterial road.

Design control and criteria  Design Vehicle. Based on the proportion of trucks and the size of the largest vehicle pass on the road of Nablus-Deir Sharaf was selected vehicle WB-20.  Design Speed the topography can be considered as a rolling terrain, and the road is suburban arterial, based on AASHTO standers the design speed considered should be between ( km/h), so we have selected the design speed of 60km/h.

Superelevation.. For highway design in urban areas a maximum rate of 4% to 6% is applicable This project lies in urban or suburban area that means the maximum superelevation is 6%. Superelevation. For 60 Km/h design speed and 6% superelevation the minimum radius is 135 m.

Geometric Design 1- Design of Cross Section Elements. 2- Design of Horizontal and Vertical alignment.

Design of Cross Section Elements.  Lane width. According to percentage of trucks and high traffic volume and as for the road is classified an arterial. We consider taking 4 lanes, two lanes in each direction, with each lane has width 3.6m. Shoulders. According to road classified the shoulder width taken as 2.4 m

Design of Cross Section Elements. Median Nablus- Deir Sharf is classified as suburban arterial and the ROW is restricted, so we take the width of median 4m. Side Walks In this project the sidewalk width will be 3.4m in urban area. Parking Lane. Parking lane is parked at the commercial strip area, as usually restricted area, so parking lane is needed. The parking lane width is 2.4m.

Location of Shoulder, sidewalk and parking Lane

Design of alignments.

Type of HC

Existing Condition “ HC “ There are a lot of HC Some Curve do not meet AASHTO standard Restricted Sight distance in some curve

Existing Condition “ VC “ All grades of VC are satisfied the Standard

22 curves Design of H.A Lmin AASHTO 2001 = 3× v= 180

Design of V.A

Type of VC

This road is urban arterial in a rolling terrain design speed is 60 K/hr. so the maximum grade is 6%

Intersections Design Four major intersection Minor intersection Deir Sharaf intersection “ Three leg intersection “. Quseen intersection “ Three leg intersection “. Tunis intersection “ Three leg intersection “. Sheikh Mohammed bin Rashed Al-Maktoom intersection “ Roundabout”. Three leg Four leg

Intersections Design