Left turn crashes can impact the safety of drivers due to speed and angle at which they occur. turns are specifically reported affect older more than other types crashes. This paper provides a review existing engineering countermeasures that have been evaluated improve driver left turns. Twentyeight studies on signal displays (protected turns, flashing yellow arrow, digital countdown timers), i...

Consecutive traffic signalized intersections can increase vehicle stops, producing accelerations on arterial roads and potentially increasing fuel consumption levels. Eco-driving systems are one method to improve energy efficiency with the help of connectivity. In this paper, an eco-driving system is developed that computes a fuel-optimized trajectory while traversing more than intersection. Th...

We consider the offset optimization problem that coordinates the offsets of signalized intersections to reduce vehicle queues in large-scale signalized traffic networks. We adopt a recent approach that transforms the offset optimization problem into a complex-valued quadratically-constrained quadratic program (QCQP). Using the special structure of the QCQP, we provide a π/4-approximation algori...

Most existing traffic signal synchronization strategies do not perform well in the saturated high-density grid road network (HGRN). Traffic congestion often occurs in the saturated HGRN, and the mobility of the network is difficult to restore. In order to alleviate traffic congestion and to improve traffic efficiency in the network, the study proposes a regional traffic signal synchronization s...

In developing countries, motorcycle riders typically perform lane filtering at signalized urban intersections. This study aims to determine the factors that affect lateral clearance of as they travel between two lanes mixed traffic intersections in countries. this study, an onboard measurement device was developed measure lane-filtering behavior riders. It installed on a test continuously recor...

At signalized intersections, green times should be assigned to satisfy the traffic demand for all approaches. Stage-based signal control is the most common and basic control policy worldwide particularly at Japanese signalized intersections. It is defined as a signal control policy in which compatible traffic movements are grouped to move together in a specific time span within a signal cycle, ...