| UW | WSU | WSDOT |
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To increase equity in transportation planning, this project sought to identify key performance indicators that can measure the effects of transportation projects on vulnerable populations and to develop a framework for incorporating equity into the Washington State Department of Transportation’s (WSDOT) planning processes for long-range, regional, and corridor planning initiatives. ... Read More | |
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The Washington State Department of Transportation (WSDOT) spends millions of dollars each winter assessing and monitoring the chances of hazardous roadside snow avalanches in Washington’s mountains. For that assessment, dedicated staff hand-dig snow pits, visually evaluate snow conditions, and directly assess avalanche risks to support difficult decisions to open or close roads. The objective of this project is to develop an avalanche sensor for deployment by drone on inaccessible slopes above state roadways that will provide indirect, remote, and real-time information about snow conditions more safely and cost effectively. The research team has already proved the viability of using such sensors to gather temperature, movement, and location data, with a communication range of up to 1,600 feet between them and a base station. In this project, the University of Washington’s STAR Lab will manufacture six to ten sensors for field testing and will place them on a known avalanche path in Snoqualmie Pass. The research team will test the ability of drones to accurately drop and retrieve the sensors. In addition, they will test the communication between the sensors and base station, and they will evaluate the accuracy of the collected snowpack and avalanche information and its value to WSDOT’s avalanche staff. Principal Investigators: Sponsor: WSDOT |
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WSDOT faces multiple challenges in managing its highway assets. The primary objective of this project was to develop a way to predict the performance of important highway assets such as culverts, barriers/guardrails, traffic signal systems, ditches, slopes, and shoulders. This could help the WSDOT Maintenance Division set performance targets that balance available funds, acceptable performance expectations, and maintenance division priorities, potentially preventing the need for expensive reactive maintenance. ... Read More | |
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Local, state, and federal engineers and emergency managers need reliable estimates of bridge performance after an earthquake so that they can plan pre-event mitigation, post-event response and mobility, and long-term recovery. This project provided improved predictions of the post-earthquake functionality of bridges in Western Washington following a Cascadia Subduction Zone magnitude-9.0 earthquake. ... Read More | |
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Because WSDOT maintains 1,000 signalized intersections throughout the state, it is important for WSDOT to plan for connected and autonomous vehicle (CAV) technology and the information it generates, which may greatly help reduce congestion. However, currently there is no real-time, reliable, and multimodal approach for controlling the timing of signalized intersections in a connected or semi-connected arterial or urban street network. This project was intended to help WSDOT identify the technological issues and requirements of integrating connected vehicle hardware in existing traffic signal systems. ... Read More | |
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Roadway safety can be significantly improved with real-time collection of data on traffic, roadway surface, and environmental conditions and the efficient broadcasting of that information to road users. The UW’s Smart Transportation Applications and Research Laboratory (UW STAR Lab) has developed the Mobile Unit for Sensing Traffic (MUST) device, which is able to collect real-time transportation-related data, such as travel times, speeds, traffic volumes, vehicle types, pedestrian flows, and roadway surface and weather conditions. This project is implementing an AI-based, active transportation sensing (ATS) system based on the MUST device to use for comprehensive traffic scene perception and management. The ATS-MUST system will work as a transportation information center to connect diverse transportation users and elements, including active transportation users, vehicles, the roadway, the environment, and public agencies in support of various infrastructure-to-everything (I2X) applications. The researchers will install it on selected high-risk roadways and intersections to monitor the traffic scene and broadcast useful information to both road users and traffic operations centers. The project will have a statewide impact by providing real-time, multi-modal traffic data and efficient information broadcasting. Principal Investigator: Yinhai Wang, Department of Civil and Environmental Engineering, UW WSDOT Technical Monitor: Natarajan Janarthanan |
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Roadway safety can be significantly improved with the real-time collection of data on traffic, roadway surface, and environmental conditions and the efficient broadcasting of that information to road users. This project tested a mobile sensing unit and visibility detection system that would collect real-time traffic and environmental data to aid in object detection and tracking. ... Read More | |
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With increased public scrutiny of transportation agency actions and limited funding, effective resource allocation is imperative. One tool to help departments of transportation make sound investment decisions, particularly for transportation systems management and operations, is the practice of operations performance measures and management (OPMM). This project developed a primer to introduce transportation practitioners to the principles and practices of OPMM. ... Read More | |
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Truck parking facilities are struggling to meet the increasing demand of freight vehicles on the road. Lack of parking spaces and real-time information about parking availability greatly exacerbates trip uncertainty and often results in illegal parking and overtime driving. In response, this project worked to improve a system to provide information about real-time and predicted truck parking space availability to freight truck drivers. ... Read More | |
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High early strength concrete (HESC) is a high performance concrete that can achieve structural quality within 24 to 72 hours of being poured, making it ideal for locations where minimal traffic disruption is crucial. Washington and nine other states have successfully used calcium sulfoaluminate (CSA) for bridge deck repair. CSA is a desirable option for HESC because of its ability to set within a short time window (as quickly as 15 minutes after placement) and to easily surpass a compressive strength of 3,000 psi in under three hours. However, while CSA has the potential to be successfully used for HESC bridge deck overlays, more data are needed to develop appropriate guidance and specifications for its use. The objective of this study is to develop an HESC mix design with CSA cement for bridge overlays. The researchers will identify the obstacles or impediments to successfully and reliably using HESC for bridge deck overlays and will develop standards, specifications, processes, and best practices for constructing HESC overlays in Washington. This will give WSDOT the means to reliably construct overlays to rehabilitate and protect bridges with lower construction costs and less travel disruption. Principal Investigators: Sponsor: WSDOT |
