This webinar will provide an overview of NCHRP Report 948 and a methodology for evaluating and quantifying pedestrian and bicyclist safety at alternative intersections, as well as conventional intersections the new designs may be compared against. The “20 Design Flags” method provides a performance-based approach to evaluating design elements of existing or proposed intersection designs. The resulting assessment score then allows designers to make modifications to intersection form, intersection control, or specific design elements to enhance intersection safety in the project development process. The webinar will include an overview of the 20-Flag method, a discussion of how the method can be integrated into agency processes and intersection control evaluation (ICE), and tangible examples of applying the method to real-world intersection.


LTAP Recorded Webinar Image

Learning Objectives
(1) Inform participants about the NCHRP Report 948 method.
(2) Describe how the method can be used throughout the project development process.
(3) Illustrate the method using real-world case studies.

✔ Introduction and motivation for the method
✔ Overview of alternative intersections and pedestrian and bicyclist considerations
✔ Presentation of the 20-Flag Methodology
✔ Case study examples for the method
✔ Discussion of integration in project development and ICE process
✔ Q&A

Photo of Bastian Schroeder
Mike Alston

Bastian Schroeder, PhD, PE is a Senior Principal Engineer for Kittelson based in Wilmington, NC and serves as the firm’s Director of Research and Innovation. As a recognized leader in the transportation industry, he helps guide transportation emerging trends and technologies. Bastian has a passion for developing solutions to complex problems across all areas of transportation with a focus on advancing agency processes and integrating research into standard practices. His areas of expertise span traffic operations, safety, and design, and his broad multidisciplinary interests include multi-resolution modeling, big data analysis and visualization, and designing intersections and streets for people walking and biking. He is active in the Institute of Transportation Engineers (ITE) and TRB. He is the chair of the TRB Committee on Highway Capacity and Quality of Service and a member of the TRB Simulation Committee. Outside of his professional career, Bastian is an avid runner, cyclist, and triathlete who enjoys spending as much time as possible outdoors, particularly taking his family camping and hiking where no cell signal has gone before.

Mike Alston, RSP grew up in North Carolina and earned his bachelor’s degree in civil engineering from North Carolina State University before defecting to the San Francisco Bay Area, where he has lived and worked since 2010. He received master’s degrees in transportation engineering and in city & regional planning from UC Berkeley and joined Kittelson in 2017. He is a certified road safety professional. As a plangineer, Mike is excited about diving into technical details in service of planning outcomes and better, more socially equitable communities. He has done so on a variety of project types, including safety projects throughout Northern California, urban and rural transportation impact analyses, and preliminary engineering projects. Mike worked on a road diet feasibility and assessment process for the City of Oakland, including implementing Highway Capacity Manual methods to create custom service volume tables. He enjoys working with large datasets and specializes in GIS mapping and analysis, safety analysis and prioritization, and operations analysis. When not watching the sun set over Mt. Tamalpais from his office, Mike can be found riding his bike for exercise, for transportation, or to go camping.


To earn Professional Development Hours (PDHs) or a Certificate of Completion for each recorded webinar, you must view the entire webinar. After viewing, please fill out the web form at the link below to request your certificate. The Florida LTAP Center will follow-up within 2-3 weeks.

This webinar will award 1.5 PDHs.

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