Travel time analysis of selected urban streets in Baghdad city

Abstract EN

Estimating travel time and measuring speed are critical for increasing the efficiency and safety of traffic road networks.

This study presents an investigation of arterial travel time estimation for vital routes in Baghdad city.

These estimations including speeds, stops, and delays were computed via GPS device and compared to those currently used to quantify congestion and travel time reliability.

The study involved a 45-day survey of private vehicles in Baghdad utilizing a Global Positioning System (GPS) probe to collect data on traffic performance metrics for analysis in a GIS context.

It was found that the proposed travel time performance measures show definite differences in estimates of peak-hour travel time as compared with weekend travel time.

Route (1) from Bayaa intersection - Bab Al-Mutham intersection (through highway) produced a travel time of 165 minutes and 136 minutes for Bayaa intersection - Bab Al-Mutham intersection (through downtown).

The travel speed of routes 1 and 2 are observed near 25 kmph which is below the local speed limit of 70 kmph.

The maximum travel time of routes 1 and 2 are 71 minutes and 37 minutes, respectively.

While delay time was observed 45 and 20 minutes due to traffic congestion on route 1 and 2, respectively.

The majority of vehicles are capable of traveling at normal speeds, with relatively few exceeding them.

Estimating travel time and measuring speed are critical for increasing the efficiency and safety of traffic road networks.

This study presents an investigation of arterial travel time estimation for vital routes in Baghdad city.

These estimations including speeds, stops, and delays were computed via GPS device and compared to those currently used to quantify congestion and travel time reliability.

The study involved a 45-day survey of private vehicles in Baghdad utilizing a Global Positioning System (GPS) probe to collect data on traffic performance metrics for analysis in a GIS context.

It was found that the proposed travel time performance measures show definite differences in estimates of peak-hour travel time as compared with weekend travel time.

Route (1) from Bayaa intersection - Bab Al-Mutham intersection (through highway) produced a travel time of 165 minutes and 136 minutes for Bayaa intersection - Bab Al-Mutham intersection (through downtown).

The travel speed of routes 1 and 2 are observed near 25 kmph which is below the local speed limit of 70 kmph.

The maximum travel time of routes 1 and 2 are 71 minutes and 37 minutes, respectively.

While delay time was observed 45 and 20 minutes due to traffic congestion on route 1 and 2, respectively.

The majority of vehicles are capable of traveling at normal speeds, with relatively few exceeding them.