Abstract
Transportation consumes for about 27% of total energy. Almost 100% of the energy used for propelling transport vehicles is derived from petroleum resources. In Gaza Strip and West Bank, transportation consumes about 60% of the total amount of imported fuel. The traffic congestion has a negative impact significantly on the environment because of the increased amount of fuel consumption and thus emissions of pollutants from vehicles. Serious traffic congestion is concentrated in the middle part of Gaza City, especially in major arterial roads such as Eljalaa Road. The congestion comes into view clearly in the segment of the street which consists of 5 consecutive signalized intersections. What makes the congestion even worse is the non-efficient traffic signal control; where each intersection is treated in isolation. The key solution to reduce the congestion and to save energy is to use signal coordination. Therefore, this study aims to redesign and coordinate the traffic signals along Eljalaa road using TRANSYT-7F Model. It aims also to compare between the traffic performance and the fuel consumption of the coordinated signals and the existing uncoordinated ones. The analysis and design are based on geometric data and manual traffic count. The results of comparison show a remarkable improvement of the traffic performance and energy saving of the studied area. There was a reduction of travel time, delay, stops and fuel consumption by 44%, 56%, 25% and 31% respectively. The level of service has been improved from F to D. Thus, it is recommended that signal coordination should be carried out at all arterial roads in Gaza city.
Highlights
Transportation consumes for about 27% of total energy
Most governmental and non-governmental organizations are located in Gaza city and concentrated in the middle part resulting in serious traffic congestion and in increase of fuel consumption and emissions from vehicles, especially in major arterial roads such as Eljalaa St
It is a theoretical improvement over the traditional hill-climb optimization technique that has been employed by TRANSYT-7F for many years
Summary
Transportation consumes for about 27% of total energy. Almost 100% of the energy used for propelling transport vehicles is derived from petroleum resources. Gaza Strip has an area of 365 km2 It is a narrow coastal strip of land with a length of 40 km along the Mediterranean Sea in the northwest direction. The key solution to reduce the congestion and to save energy is to arrange the green signal at the downstream signalized intersection to match with the platoon traffic flow arriving from the upstream signalized intersection. Given this context, the study aims to analyze the existing traffic situation and fuel consumption of the five consecutive uncoordinated signalized intersections located along Eljalaa Road.
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