AN INTEGRATED APPROACH TO GEOMETRIC DESIGN OPTIMIZATION AND SAFETY PLANNING FOR REDUCING TRAFFIC COLLISIONS ON ALLAMA SHABBIR AHMED USMANI ROAD

Abstract

The study Focuses on assessing the existing geometric design and safety conditions of Allama Shabbir Ahmed Usmani, Road along the traffic corridor between Maskan and Disco Intersection in Karachi City. Recent traffic conditions are evaluated in response to persistent congestion and frequent traffic accidents through comprehensive traffic surveys and vehicular traffic counts. Advanced micro simulation tools which includes PTV Vissim and AutoCad Civil 3D for geometric design visualization.These software are used to accurately replicate existing traffic flow conditions within the corridor. The results of traffic volume analysis from the basis for proposing alternative geometric design solutions such as signalized intersection and  roundabouts, aimed at reducing congestion and improving road user safety. The proposed interventions seek to improve traffic capacity, reducing vehicular conflicts and optimize overall operational performance by integrating traffic flow theory with geometric design principles. The results of this research provide data driven recommendations for urban planners, traffic engineers, and local authorities  to improve safety and efficiency of Allama Shabbir Ahmed Usmani Road, Karachi.Ultimately, This research supports the broader goals of sustainable urban mobility, intelligent transportation system and livable city development through innovative geometric design solutions