Active Transportation Management (ATM) encompasses a suite of strategies that give agencies the ability to dynamically manage recurrent and non-recurrent congestion based on prevailing and predicted traffic conditions. ATM approaches focus on influencing travel behavior with respect to lane/facility choices and operations. ATM deployments are still relatively new in the United States with few deployments prior to 2010, however the number of deployments has increased in the past decade nationwide. ENTERPRISE conducted this project to identify resources and document lessons learned related to the development and deployment of ATM strategies, with an emphasis on deployments in urban areas that include multiple applications (e.g. Variable Speed Limits (VSLs), dynamic queue warning, part-time shoulder running).
Completed
ITS Infrastructure Integration with CAV and MaaS
Transportation is on the verge of dramatic change with the introduction of connected and automated vehicles (CAV) and mobility as a service (MaaS), also referred to as mobility on demand (MOD). As private industry identifies new market opportunities to deliver transportation automation and services, infrastructure owners and operators are working to understand what their roles and responsibilities will be in the future and during the ensuing transition period. ENTERPRISE initiated this project to begin exploring how CAV and MaaS might impact operations, especially as it relates to ITS infrastructure.
The following materials were used in a series of workshops conducted during the project and are provided here for further reference.
Real-Time Integration of Arrow Board Messages Into Traveler Information Systems Evaluation – Phase 3
The ENTERPRISE Pooled Fund Study has completed two previous efforts supporting transportation agencies integrating arrow board status information from the field into traveler information systems to alert TMC operators and travelers in real-time, for example, of a lane closure. Per direction from the ENTERPRISE Board, Phase 1 and Phase 2 were completed in 2017 in order to properly assess needs and potential solutions before deployment and evaluation of a real-time arrow board system at one or more ENTERPRISE agency sites.
In 2018, the Minnesota Department of Transportation (MnDOT) conducted a one year pilot project through a contract with a vendor (Street Smart) that installed a monitoring device on 20 arrow boards that provided arrow board status information (e.g. right arrow on, left arrow on) to the vendor’s server. The arrow board status information from the server was then integrated with MnDOT’s Advanced Traffic Management System (ATMS) and then their Road Condition Reporting System (RCRS). In 2019, the Iowa DOT had access to 5 equipped arrow boards with reporting capabilities (Street Smart, iCone, Ver-Mac) to provide real-time arrow board status information to the vendor’s server. This project evaluated the deployments of the arrow board concept in these two ENTERPRISE member states (Minnesota and Iowa). In addition, an overview of the Regional Transportation Commission (RTC) of Southern Nevada real-time arrow board reporting system deployment is included as another perspective. Overall the data analysis for MnDOT and the information gathered from interviews from MnDOT and Iowa DOT indicate a benefit to the traveling public and Transportation Management Center (TMC) operators with additional information on the overall network with the location of lane closures provided by arrow board reporting systems.
Best Practices in Future Proofing for Emerging Technologies
Transportation agencies continue to deploy and operate emerging technologies and ITS assets in both urban and rural areas. These assets serve key roles in operations of the transportation system. Maintaining the ability of these ITS assets to continue to be of value in the future is referred to as “future proofing the asset.” The focus of this project was on researching best practices and overall approaches towards future proofing ITS assets. As part of this research, seven categories of threats have been identified that present possible risks to the future of ITS assets, including: natural, human interactions, functional performance, extended use, financial, license/policy/regulatory, and security threats. The research also identified multiple approaches for mitigating the future proofing risks to ITS assets. A business model suggesting roles for seven existing DOT activities was drafted and an overall four-step approach to mitigating risks to ITS assets was developed. State and local DOTs can implement this research by reviewing the recommended actions and considering which are appropriate for their organization to mitigate risks to the future use of ITS assets. Lastly, the project recommends future research activities to further assist agencies with streamlining activities for future proofing ITS assets.
Pedestrian Detection Systems for Improved Safety
A significant increase in traffic-related pedestrian fatalities has been experienced in the United States since 2009. Detection-based pedestrian safety technologies have the potential to improve safety for pedestrians. This research was completed to improve ENTERPRISE members’ understanding of pedestrian traffic safety issues and explore recent advancements in detection-based pedestrian safety technologies. This project conducted a literature search to provide context for pedestrian safety issues and trends, completed an industry scan of detection-based pedestrian safety technologies, and identified potential future research for consideration by ENTERPRISE or other research entities. The literature search revealed several factors and conditions that have been found to contribute to higher rates of pedestrian fatalities and serious injuries, which can help agencies as they consider technology-based solutions. The industry scan identified numerous examples of detection-based technologies that are commercially available or being researched. While there is some evidence of deployments and testing, many technologies appeared to be in early stages of planning or implementation. Future research could consider investigating the effectiveness of signage or other alerts for pedestrians; demonstrating and evaluating commercially available pedestrian safety technologies, or research to correlate crash or conflict causes with appropriate safety technologies.
Patented and Proprietary Products Waiver Impact on ITS Procurements
In 2019, the Federal Highway Administration (FHWA) issued the Final Rule on Construction and Maintenance-Promoting Innovation in Use of Patented and Proprietary Products to encourage innovation in the development of highway transportation technology and methods. Per this rule, state departments of transportation (DOTs) are no longer required to provide certifications, make public interest findings, or develop research or experimental work plans to use patented or proprietary products in federal-aid projects. This project provides an overview of the rulemaking and documents through selected case studies describing how the change is being implemented by state DOTs. The case studies revealed that internal DOT processes for use of patented or proprietary products remained largely unchanged following the FHWA rule change, as DOTs continue to require approvals or documentation even though FHWA approval is no longer required. Most participating DOTs agreed that processes have been somewhat streamlined; however, the overall reduction in regulatory burden has been minimal because internal justifications, approvals, or documentation are still required. Most agencies noted that the rule change does have the potential to encourage innovation because it allows increased flexibility for the DOT to approve innovations internally.