A qualitative study of the core functions of Smart Traffic Centers at the Virginia Department of Transportation.

Shin, Gene-Tey · 2006 · ROSA P / Virginia Transportation Research Council (VTRC)

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Summary

This qualitative study, conducted by the Virginia Transportation Research Council for the Virginia Department of Transportation (VDOT), investigates the core functions of Smart Traffic Centers (STCs). Established to mitigate congestion caused by traffic demand exceeding roadway capacity, STCs were initially designed primarily to disseminate information to the public. However, because the six STCs across Virginia were established at different times with varying regional approaches, their practices, organizational structures, and relationships with other agencies diverged significantly. The study aimed to define and understand these evolving core functions to coordinate STC development and improve operational consistency. The research employed a qualitative methodology involving interviews with STC program and operations managers, group discussions within a Community of Practice, document analysis of management records, and direct observations at each STC location. Data were collected from STCs in Hampton Roads, Northern Virginia, Richmond, Salem, Staunton, and Fredericksburg. The study focused on identifying major activities performed in service of traffic operations and analyzing how these functions were defined and executed across different regions. The findings identified four core functions: traffic management, incident management, emergency operations/emergency management, and regional networking. Incident management was determined to be the primary driver of STC activities, encompassing detection, verification, response, clearance, and information dissemination. The study highlighted that the presence of a fully developed Safety Service Patrol (SSP) is critical to STC functionality. SSPs act as "live sensors," providing real-time verification and direct incident management capabilities that cameras and remote monitoring cannot fully replace. In regions with robust SSPs, such as Hampton Roads and Northern Virginia, STCs could effectively manage incidents and maintain traffic flow. Conversely, in areas with limited or no SSPs, such as Richmond, the STC’s ability to manage incidents directly was significantly impaired. Furthermore, regional networking was identified as essential for coordinating with local, state, and federal agencies, particularly in complex regions with multiple jurisdictions. The study concludes that while regional variations will persist, STC operations benefit from increased sharing of information and practices. Fully developed SSPs are recommended as the most powerful resource for incident management and public relations. Additionally, because STCs serve as VDOT’s most direct link to the public and a hub for multi-agency coordination, regional strategies for traffic operations should be standardized and shared among locations to ensure safe and efficient incident management.

Key finding

Incident management defines the vast majority of STC work and is significantly enhanced by fully developed Safety Service Patrols, which serve as essential live sensors and direct responders.

Methodology

mixed_methods

Provenance

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