International Boulevard Vulnerable User Safety Project
The City of SeaTac has received $1,660,000 in federal funding through the United States Department of Transportation’s Safe Streets for All Grant Program to develop a citywide Comprehensive Safety Action Plan. The funding will also support a demonstration project that implements safety-based technology and temporary mid-block crossing safety mitigation strategies along International Boulevard (State Route 99) at thirteen signalized intersections and two signalized pedestrian crossings located between South 160th Street and South 208th Street.
This project will identify all existing safety issues at each of the subject intersections to develop safety countermeasures where pedestrian safety is found to be most at risk. Risks associated with unmarked mid-block crossings, distracted driving, red light running, dilemma zone occurrences (critical area at a signalized intersection where drivers face a decision-making challenge), variable pedestrian demand, timing strategies at signalized crossings, and vulnerable user safety will be an emphasis. At a minimum, the following strategies will be used to accomplish this objective:
Collect multimodal data from text, audio, images, and/or video), identify safety issues and modal conflicts, support real-time safety applications and signalized intersections, and measure before-after impacts of safety mitigation strategies.
Design and implement mid-block median treatments to reduce mid-block crossing occurrences by improving access to signalized crossings and deterring use of existing landscaped medians as a pedestrian refuge.
Leverage advanced traffic signal technologies for advanced timing strategies and real-time safety conflict identification.
Utilize low-cost, high impact strategies that can improve roadway safety citywide. These strategies will inform development of the Comprehensive Safety Action Plan which will inform futuretransportation safety treatments citywide.
Coordinate with technical experts from the Port of Seattle, Sound Transit, King County Metro, King County Roads, Highline Public Schools, and the SeaTac Police Department from concept through implementation/demonstration. The public will be engaged through workshops, public meetings, and surveys over the course of this project and feedback will be incorporated into the Comprehensive Safety Action Plan.
Adopt innovative technologies to promote safety and equity to make collision data accessible in real-time while also supplementing with near-miss conflict information along the project corridor.
Provide evidence-based results by deploying data collection technology capable of measuring performance of signal improvements. Data collection and evaluation will be guided by an Evaluation and Data Management Plan (EDMP).
Design efforts for this project are anticipated to be completed sometime in late 2027 with installation of safety treatments occurring in 2028. Data evaluation and performance findings will be completed no later than 2030.
The City of SeaTac has received $1,660,000 in federal funding through the United States Department of Transportation’s Safe Streets for All Grant Program to develop a citywide Comprehensive Safety Action Plan. The funding will also support a demonstration project that implements safety-based technology and temporary mid-block crossing safety mitigation strategies along International Boulevard (State Route 99) at thirteen signalized intersections and two signalized pedestrian crossings located between South 160th Street and South 208th Street.
This project will identify all existing safety issues at each of the subject intersections to develop safety countermeasures where pedestrian safety is found to be most at risk. Risks associated with unmarked mid-block crossings, distracted driving, red light running, dilemma zone occurrences (critical area at a signalized intersection where drivers face a decision-making challenge), variable pedestrian demand, timing strategies at signalized crossings, and vulnerable user safety will be an emphasis. At a minimum, the following strategies will be used to accomplish this objective:
Collect multimodal data from text, audio, images, and/or video), identify safety issues and modal conflicts, support real-time safety applications and signalized intersections, and measure before-after impacts of safety mitigation strategies.
Design and implement mid-block median treatments to reduce mid-block crossing occurrences by improving access to signalized crossings and deterring use of existing landscaped medians as a pedestrian refuge.
Leverage advanced traffic signal technologies for advanced timing strategies and real-time safety conflict identification.
Utilize low-cost, high impact strategies that can improve roadway safety citywide. These strategies will inform development of the Comprehensive Safety Action Plan which will inform futuretransportation safety treatments citywide.
Coordinate with technical experts from the Port of Seattle, Sound Transit, King County Metro, King County Roads, Highline Public Schools, and the SeaTac Police Department from concept through implementation/demonstration. The public will be engaged through workshops, public meetings, and surveys over the course of this project and feedback will be incorporated into the Comprehensive Safety Action Plan.
Adopt innovative technologies to promote safety and equity to make collision data accessible in real-time while also supplementing with near-miss conflict information along the project corridor.
Provide evidence-based results by deploying data collection technology capable of measuring performance of signal improvements. Data collection and evaluation will be guided by an Evaluation and Data Management Plan (EDMP).
Design efforts for this project are anticipated to be completed sometime in late 2027 with installation of safety treatments occurring in 2028. Data evaluation and performance findings will be completed no later than 2030.
