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System Requirements for Viewing this Course
Sponsored by ASCE Continuing Education and the Transportation and Development Institute (T&DI).
INSTRUCTOR: Nazir Lalani, P.E., M.ASCE
Purpose and Background
About 65 percent of all crashes in urban areas and 40 percent of those in rural areas occur at or near intersections or driveways. Safety improvements at these locations have always been a priority and pose a challenge for most transportation agencies in throughout the world. Because crashes are typically complex events, a great diversity of mitigation measures have been tried with varying degrees of success, including the modern roundabout. This webinar offers a range of guidelines, solutions, and strategies for reducing conflicts and provides hands-on training for engineers and planners on how to effectively manage accesses serving new and existing office, commercial and industrial uses. The presentation will focus on how to optimize the spacing and design characteristics of driveways to minimize the impacts on major street operations as well as the potential for crashes. The needs of all road users (motorists, pedestrians, and bicyclists) will also be addressed. Necessary tools and good practices for providing well planned access to a variety of development projects, from the perspectives of both the agency and the developer proposing the project, are covered. The best sources of additional information on each topic will be identified. Numerous examples will be provided illustrating both good and bad examples of access management and the impacts to the overall operation of these high volume corridors.
Learning Outcomes
You will learn about:
- Gain a better understanding of at least five critical design parameters relating driveway access
- Learn about ten factors that impact traffic flow within parking lots of commercial developments
- Identify five best sources of additional information/references
- Four best practices for managing access by limiting turning movements at unsignalized accesses
- How to design signalized and unsignalized driveways to provide unimpeded flow for motorized traffic while balancing the needs of pedestrians and bicyclists
- Learn from at least three case studies of development projects
Webinar Benefits
At the conclusion of this webinar, participants will be able to:
- Design better access and on site circulation for various types of commercial projects
- Create safe, comfortable, accessible, and welcoming environments for pedestrians and bicyclists
- Avoid the most common mistakes of existing parking lot and driveway designs
- Develop a digital library of the most useful publications and sources of information
Intended Audience
- Consulting transportation engineers/planners
- Transportation engineers/planners working for public agencies
- Developers of commercial projects
Webinar Outline
- Access, site design and site circulation
- Access locations and spacing
- Offsets and corner clearance
- Curb radii and driveway width
- Throat lengths and vehicle storage
- Drive through facilities
- Parking lot pavements
- Accesses serving off-street parking lots
- Grade and grade breaks
- Sight distance and landscaping
- Channelization islands
- Pedestrians and bicycle circulation
- Emergency vehicle access
- Utilities and lighting
- Delivery and service
- Transit Oriented Development
- Inter-development circulation
- Case studies of commercial development projects