This paper presents an improvedmodel for improving headway-based bus route service reliability at bus stops using real-time preventive operation control, taking into account dynamic interaction among random passenger demand, stochastic driving conditions of route segments, and vehicle load capacity constraint. In this model, the real-time information of passenger demand and vehicle operation is...

This research paper deals with the design of adaptive cruise control (ACC) which was implemented on a passenger car using PID controller. An important feature of the newly based adaptive cruise control system is that, its ability to manage a competent inter-vehicle gap based on the speed of host vehicle and headway. There are three major inputs to the ACC system, that is, speed of host vehicle ...

Effective intervehicle communication is fundamental to a decentralized traffic information system based on mobile ad hoc vehicle networks. Here we model the information propagation process through inter-vehicle communication when the vehicle headway follows a general distribution. Equations for the expected value and variance of propagation distance are derived. In addition, we provide simple e...

Although there are remarkable differences in drivers’ behavior as well as vehicles characteristics, road capacity estimationmethods in developing countries are same as developed ones. So, the discrepancy between the theoretical andpractical values of capacity is inevitable. Although, capacity estimation methods can be classified based on numerousparameters, in developing count...

The saturation flow rate is a fundamental parameter to measure the intersection capacity and time the traffic signals. However, it is revealed that traditional methods which are mainly developed using the average value of observed queue discharge headways to estimate the saturation headway might lead to underestimate saturation flow rate. The goal of this paper is to study the stochastic nature...

The properties of vehicle time headways are fundamental in many traffic engineering applications, such as capacity and level of service studies on highways, unsignalized intersections, and roundabouts. The operation of modern vehicle-actuated traffic signals is based on the measurement of time headways in the arriving traffic flow. In addition, the vehicle generation in traffic flow simulation ...

Transportation Research Record: Journal of the Transportation Research Board, No. 2312, Transportation Research Board of the National Academies, Washington, D.C., 2012, pp. 34–45. DOI: 10.3141/2312-04 Department of Civil and Environmental Engineering, University of Windsor, Windsor, Ontario N9B 3P4, Canada. Current affiliation for J. Dahl: Lea Consulting Ltd., 625 Cochrane Drive, Suite 900, Mar...

Freeway merge areas are recognized as the most common segment of recurrent freeway congestion as two separate traffic streams join to merge a single stream. Over the years, several studies have attempted to explain and analyze a merge capacity phenomenon, however relatively few analytical techniques have been developed to evaluate the traffic flow in these areas. This study described a new inte...

There are currently no cures for neurodegenerative diseases, including Batten disease, a rare and fatal disorder affecting young children. While researchers have made headway in preventing genetic disorders through preconception carrier screenings and have found potential drug targets, the gap between basic research and clinical treatment development remains. To overcome this gap, write authors...

Although extensive research has been carried out in the past to assess the performance of control signals under different service mechanisms, little interest has been given to the way these control methods deal with the variability of traffic. This paper proposes a probabilistic approach to calculate delay and queue length distributions in time. This method has been used to compare the effects ...