Evaluation of Central Traffic Signal System and Best Practices for Implementation: Phase 1

Principal Investigator(s):

John Hourdos, Research Associate Professor, Civil, Environmental and Geo-Engineering

Project summary:

Detailed intersection control information (ICI), including timing, phasing, geometric, and demand attributes, is increasingly desired by researchers, consultants, and private sector companies for many applications. These applications include the modeling of multiple construction project impacts on the regional system and emerging technologies (such as the display of in-car dashboard information about signals via cellular communications). In the past, distributing this traffic signal information has been difficult or impossible given the availability and storage format of the data. However, in 2016, the Minnesota Department of Transportation (MnDOT) purchased a new Central Traffic Signal Control System (CTSCS) that will allow the capture of high-resolution signal data from the traffic signal controllers, making the distribution more feasible. In addition, the adoption of the Utah DOT (UDOT) Signal Performance Measure (SPM) application is planned for 2017. The purpose of the project is to develop the tools and methodologies for extracting this ICI from MnDOT's CTSCS and SPM applications. The project is also analyzing the available information from metro area counties and cities to ensure uniformity and storage format efficiency on a regional and statewide basis. During the first phase of the project, described in this work plan, the effort will focus on the identification of a feasible, all-inclusive, unified set of intersection control information and explore the data warehousing capabilities and expansion needs of the CTSCS owned by MnDOT.

Project details: