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Designing Streets for Residential Subdivisions

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Instructor Information: Edward J. Wimmer, P.E., M.ASCE

Course Length: 1.5 Hours

This webinar was co-sponsored by ASCE's Transportation and Development Institute and ASCE Continuing Education

Purpose and Background

Although many agencies have adopted standards and guidelines for designing streets in residential subdivisions, the results have been mixed. This is because the impacts of street widths and tangential lengths on vehicle operating speed are not clearly understood. This presentation will discuss the effect of street widths and tangential lengths on driver’s speed on residential streets and what can be done to control speed on residential streets for new subdivisions. This presentation will also be applicable to redevelopment projects. The use of cul-de-sacs and their impacts on non-motorized vehicles will also be discussed. The instructor will illustrate these using street design examples from different subdivisions that result in lowering speed limits. Traffic calming features used during street construction will also be covered. A reference list will be provided that includes articles, websites, and other study material.

Learning Outcomes

This webinar will help you learn the goals of residential street designs and the best practices to accomplish them, the best sources of information on best practices, lot layout, street designs, addressing pedestrian and bicycle circulation, gated communities and designing traffic calming treatments in new subdivisions. You will learn from examples of recent subdivisions that have incorporated traffic calming into their designs as well as subdivisions where retrofitting of traffic calming measures will inevitably be necessary.

Webinar Benefits

  • Learn how to design residential streets
  • Learn what key design decisions impact vehicle operating speeds
  • Find out what works and what does not

Intended Audience

This webinar will benefit transportation professionals (engineers and planners) who work for consulting firms, cities and counties, involved in designing streets for residential subdivisions. Having some background and training in residential traffic design will be helpful.

Webinar Outline

  • Selecting appropriate street widths
  • Impacts of tangential length
  • Use of cul-de-sacs
  • Effects on traffic safety
  • Impacts on emergency response times
  • Addressing the needs of all road users
  • Avoiding future traffic calming issues
  • Implementing traffic calming features in new subdivisions
  • Green streets
  • Research findings
  • Case studies