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  • Prioritizing Bicyclist Safety and Mobility: Which Guidance Do I Use?

Past Research

Prioritizing Bicyclist Safety and Mobility: Which Guidance Do I Use?

Posted by ebs233 on January 8, 2025

Sponsor: USDOT, through PSR9 UTC

PI: Edward Smaglik

Co-PI: Brendan Russo

Historically bicyclists may have been an afterthought and expected to share space
with motor vehicles, however, this is outdated attitude is giving way to new approaches found in
various bicycle infrastructure design guidance documents. This study used a multi-staged
approach to investigate the usage of these guides by state and local agencies. A literature
review synthesized literature and published guides on bicycle infrastructure design and was
followed by a survey of… Read more

Filed Under: AZ_Trans, Past Research, Research

Treatments in Phoenix: Guidance on Implementation and Operation

Posted by ebs233 on

Sponsor: City of Phoenix, AZ

PI: Edward Smaglik

Co-PIs: Steven Gehrke and Brendan Russo

In order to take a more proactive approach toward the implementation and operation
of Leading Pedestrian Intervals (LPIs) and other non-motorized user-focused treatments in the
City of Phoenix, this project provided guidance on the implementation of different pedestrian
treatments at signalized intersections within Phoenix. Using sites selected through a crash
analysis, video data was collected to analyze vehicle – pedestrian interactions at signalized
intersections (with and without LPIs,… Read more

Filed Under: AZ_Trans, Past Research, Research

Development of Instrumented Bikes: Toward Smart Cycling Infrastructure and Maintenance

Posted by ab3824 on September 29, 2022

Sponsor: U.S. Department of Transportation, Pacific Southwest Region 9 UTC

PI: Chun-Hsing Ho

Co-PIs: Brendan J. Russo and Steven R. Gehrke

Project Report: https://www.metrans.org/assets/research/psr%20final%20report%20nau%20instrumented%20bike%20revised%2011252022.docx.pdf

This research project developed an instrumented bike with a sensor logger, a video device (e.g., GoPro), a mobile app, and a cloud server/website to detect real-time quality of cycling infrastructure systems (bike trails, sidewalks, pedestrian pathways, etc.). The instrumented bike is capable of immediately sharing the information with cyclists (road users) and governments/authorities… Read more

Filed Under: AZ_Trans, Past Research, Research

Evaluation of Sidewalk Autonomous Delivery Robot Interactions with Pedestrians and Bicyclists

Posted by ab3824 on

Sponsor: U.S. Department of Transportation, Pacific Southwest Region 9 UTC

PI: Steven R. Gehrke

Co-PIs: Edward J. Smaglik and Brendan J. Russo

Project Report: https://www.metrans.org/assets/research/psr_finalreport_21-16.pdf

Information and communication technology advancements and an increased demand for contactless deliveries after the Covid-19 pandemic outbreak resulted in the growing adoption of automated delivery services. Across university campuses, the deployment of sidewalk autonomous delivery robots (SADRs) has provided students, staff, and faculty a convenient last-mile delivery option. However, SADRs traverse campuses… Read more

Filed Under: AZ_Trans, Past Research, Research

Analysis of the Safety Impacts of the Left-In Left-Out Median Opening Treatment at Intersections/Driveways

Posted by ma3932 on November 30, 2021

Sponsor: City of Scottsdale

PI: Dr. Brendan Russo

Dates: 01/01/2021-11/30/2021

Project Report:
https://www.scottsdaleaz.gov/Assets/ScottsdaleAZ/Transportation/Analysis+Left+In+Left+Out+-+2021.pdf

Over the past few decades the City of Scottsdale, Arizona has installed left-in/left-out (LILO) median opening treatments at approximately sixty intersections/driveways; typically at three-leg intersections or driveways on arterials with medians where the minor leg is stop-controlled. The treatment is relatively unique and consists of a channelizing island with an acceleration length provided for vehicles turning left out of the minor road (these left-turning vehicles then merge with major… Read more

Filed Under: AZ_Trans, Past Research, Research

The Development of a Cooperative Safety Performance Assessment Framework for Connected and Automated Driving System-Equipped Vehicles

Posted by nbl42 on November 12, 2019

Sponsor: Institute of Automated Mobility (IAM) through the Arizona Commerce Authority (ACA)

PI: Brendan J Russo

Start Date: August 2019

The rapid development and testing of connected and automated driving system (ADS)-equipped vehicles (CAVs) in our urban communities raises serious concerns for public safety. To address these concerns, the Institute of Automated Mobility (IAM) established by Governor Ducey in Arizona has embarked on an innovative approach to driving safety performance assessment that cooperatively utilizes both infrastructure and vehicle data. Data from… Read more

Filed Under: AZ_Trans, Past Research, Research

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