Abstract: Estimating horizontal alignment using discretized roadway data points, such as GIS maps, is complicated because the number of curved and tangent segments and their start and end points are not known a priori. This study ...

Abstract: The main goal of this paper is to investigate the impact of accessibility changes on the level of economic development in a given region. In this paper, we introduce several types of accessibility measures while economic ...

Abstract: The prevention of secondary crashes is a high priority task in traffic incident management. However, the limited knowledge regarding the nature of secondary crashes largely impeded the development of established countermeasures. ...

Abstract: Many surveyors who work in/near live traffic encounter unique safety challenges as they are frequently exposed to fast moving vehicles. Unlike traditional work zones, safety countermeasures at surveying sites are usually ...

Abstract: Toll plazas create a number of bottlenecks on highways. They can induce motor vehicle crashes and also put workers such as toll collectors at risk. Enhancing safety at toll plazas is crucial to improving safety on tolled ...

Abstract: Public agencies have been increasing their use of freeway service patrols (FSPs) to help with incident detection, verification, response, and motorist support. Using the microscopic simulation software PARAMICS, this study ...

Abstract: With the rapidly changing landscape for taxis, ride-hailing, and ride-sourcing services, public agencies have an urgent need to understand how such new services impact social welfare: impacts of technologies on matching ...