Emerging automated vehicle (AV) technologies are increasingly being deployed around the world and it is only a matter of time before transportation landscape changes dramatically. Unfortunately, those cannot be well predicted due to lack empirical data. But adaptive cruise control (ACC) vehicles common in market can used fill this gap. In paper, we aim characterize car-following behaviors comme...

Headway is a safety measure commonly used to investigate driving behaviour and driver performance. Its purpose reflect the following distance or time between leading vehicle in traffic. It therefore associated with drivers’ response time, such as braking swerving, during critical events. In literature, headway are defined different ways, despite standard definitions traffic engineering which pr...

The primary challenge for an urban bus system is to maintain constant headways between successive buses. Most bus systems try to achieve this by adherence to a schedule; but this is undermined by the tendency of headways to collapse, so that buses travel in bunches. To counter this, we propose a new method of coördinating buses. Our method abandons the idea of a schedule and even any a priori t...

We focus in this article on the analysis of an acceleration law for a following autonomous vehicle with constant time headway goal. We rst deene a function that measures the positioning of the following vehicle compared to the leading vehicle, w.r.t. the desired time headway. We study the convergence and limit of this positioning function, and prove the asymptotic stability of our acceleration ...

In the perspective of biomedical applications, consider a re- current event situation with a relatively low degree of recurrence. In this setting, the focus is placed on successive inter-event gap times which are observed in the presence of both a terminal event like death and inde- pendent censoring. The terminal event is potentially related to recurrent events while the censoring process is a...

Irregular headways could reduce the public transit service level heavily. Finding out the exact causes of irregular headways will greatly help to develop efficient strategies aiming to improve transit service quality. This paper utilizes bus GPS data of Harbin to evaluate the headway performance and proposes a statistical method to identify the abnormal headways. Association mining is used to d...