Mafruhatul Jannat

Leidos, Inc. · Transportation

This research, funded by the United States Department of Transportation Federal Highway Administration, is one of the early initiatives to investigate the potential of advanced technologies to improve pedestrian safety through vehicle automation and user notification. The research identified the need to develop standardized strategies with which to...

A right-hook (RH) crash is a common type of bicycle–motor vehicle crash that occurs between a right-turning vehicle and through-moving bicycle at an intersection in right-hand driving countries. Despite the frequency and severity of this crash type, no significant driver-performance based evidence of the causes of RH crashes at signalized intersect...

Objective: The objective was to explore the effect of driver Situational Awareness (SA) on “right-hook” bicycle-motor vehicle crashes involving right turns into adjacent bicyclists. Background: Previous literature suggests that improper allocation of motorists’ visual attention, inadequate surveillance, and poor SA are contributing factors to bicyc...

This presentation discusses recent Federal Highway Administration efforts to make dynamic reversible left-turn lanes practice-ready, for congested diamond interchanges. Signalized diamond interchanges (SDIs) are widely deployed in the U.S. Their purpose is the efficient handling of freeway-to-arterial connections. However, increasing traffic conges...

The overall goal of this research was to quantify the safety performance of alternative traffic control strategies to mitigate right-turning vehicle-bicycle crashes at signalized intersections in Oregon. The ultimate aim was to provide useful design guidance to potentially mitigate these collision types at the critical intersection configurations....

The goal of this educational outreach project was to examine perceptions of driver distraction among teenagers in the Pacific Northwest. Specifically, to identify secondary tasks this group may consider distracting and determine their self-reported engagement in those same secondary tasks while driving. An interactive presentation was developed and...

Type-II dilemma zones are the segment of roadway approaching an intersection where drivers have difficulty deciding to stop or proceed at the onset of the circular yellow indication. Signalized intersection safety is improved when dilemma zones are correctly identified and steps are taken to reduce the likelihood that vehicles are caught in such zo...

The use of low-speed vehicles (LSVs) on public roadways has gradually increased in recent years as a short-range alternative to fossil-fueled vehicles. Primarily designed for protected environments and gated communities, LSVs have a maximum speed limit of 25 mph and are not held to the same Federal Motor Vehicle Safety Standards required for passen...