This study aims to model the motorized two-wheeler (MTW) riders’ evasive-action behavior towards jaywalking pedestrians using a mockup study. The brake reaction times (BRTs), approach speeds, decelerations, headings, and yaw rates were analyzed for two surprise scenarios (scenarios 1 3), one stationary scenario (scenario-2), expected (scenario-4). In total, 50 riders participated in results rev...

This paper develops an integrated safety-enhanced reinforcement learning (RL) and model predictive control (MPC) framework for autonomous vehicles (AVs) to navigate unsignalized intersections. Researchers have extensively studied how AVs drive along highways. Nonetheless, intersections in urban environments remains a challenging task due the constant presence of moving road users, including tur...

This paper evaluates attitudes of Iranians toward crossing red traffic lights and their sensitivity to fines. Economic theory of crime under expected utility predicts that because of the possibility of severe punishments, risk adverse individuals would not cross red lights. This is implied by the Becker proposition. However, among 262 individuals surveyed, more than half of the sample has previ...

There is considerable interest in techniques capable of identifying anomalies and unusual events in busy outdoor scenes, e.g. road junctions. Many approaches achieve this by exploiting deviations in spatial appearance from some expected norm accumulated by a model over time. In this work we show that much can be gained from explicitly modelling temporal aspects in detail. Specifically, many tra...

The purpose of this study was to explore the epidemiological features of common unintentional injury-related behaviours and to identify possible factors that lead to these unsafe behaviours among adolescents. A representative sample of 10,806 students was recruited from 77 schools by using the two-stage stratified random sampling method. All participants took a self-administered questionnaires ...

Considering the high crash rates involving pedestrians on urban roads, it is highly relevant to understanding pedestrian crossing behavior. This paper first combine stated preference (SP) and revealed (RP) data evaluate impact that individual attributes, trip characteristics, built environment, strategies prevent unauthorized crossing, traffic flows have decisions in an context. SP RP surveys w...

BACKGROUND Prompted by a series of fatal and nonfatal pedestrian-vehicle collisions, university leadership from one urban institution collaborated with its academic injury research center to investigate traffic-related hazards facing pedestrians. METHODS This descriptive epidemiologic study used multiple data collection strategies to determine the burden of pedestrian injury in the target are...

12 1094-7167/03/$17.00 © 2003 IEEE IEEE INTELLIGENT SYSTEMS Her baby daughter was delivered seven weeks early by emergency Caesarian section and is in critical condition. The girl’s 10-month-old brother, who was in a child restraint in the backseat, is also in critical condition. The accident happened when a car, thought to have been traveling at up to 80 kmph (the speed limit), failed to stop....

Modern-day driving schools in Austria are using theoretical tests and a practical driving exam to ensure a person is fit to drive on the streets. Students have to learn these skills by driving with a teacher and taking lessons in a class. But many topics can only be covered in theory and not experienced in person beforehand. Those include very risky situations, like jaywalking, and situations t...