Modern Roundabout Design: Designing Safe Intersections

$59.90

add to cart Get More With a Subscription! Request a Demo For Your Company

This course has been discontinued

Modern roundabouts reduce 75% of the conflicts at traditional 4-leg intersections, significantly improving the operations and safety of intersecting roadways. To promote the use of roundabouts the Federal Highway Administration has recently made them a key element of the Every Day Counts initiative to improve safety on roadways throughout the U.S. Since then, state DOTs and local agencies have increased their need for the development of modern roundabouts. This course will provide a fundamental overview to guide engineers in the development of modern roundabout designs.

Objectives SME

Course Objectives

At the end of this course you will be able to:

Describe the main characteristics of modern roundabouts and their operational and safety advantages over other types of circular intersections
Explain how modern roundabouts reduce intersection conflicts and the severity of vehicular crashes
Select the appropriate type of modern roundabout design based on intersection traffic volumes
Calculate the safety benefits of modern roundabouts using crash reduction and financial estimates
Estimate the environmental and financial benefits of modern roundabouts using vehicular idle times and their relationship to carbon emissions
Determine roundabout capacity and level of service using the 2010 Highway Capacity Manual methodology
Identify the key geometric design features for single lane, multilane and mini roundabouts
Design roundabout features that promote vehicular and pedestrian safety by reducing vehicular travel speeds
Describe how landscape and architectural aesthetic features within roundabouts can improve safety by increasing driver awareness
Design roundabout features to provide accessibility for pedestrians with adequate geometry for wheelchair users

SUBJECT MATTER EXPERT: Alfredo Cely, P.E., MSEM

Alfredo is a Civil Engineer that has managed Transportation, Land Development, Water Resources and Aviation projects from planning to construction for the past 14 years. Most recently his consulting work has focused on assisting state and local agencies in improving the safety of our transportation network. He has been responsible for several multi-modal transportation projects in the Tampa Bay Area, throughout the U.S. and abroad. He is a licensed Civil Engineer in Florida, North Carolina, and Ecuador.

At the University of South Florida, Alfredo serves as an instructor for the Transportation sections of the P.E. Preparation Courses hosted by the American Society of Civil Engineers’ (ASCE) Student Chapter. Alfredo is a member of ASCE’s Street and Highway Operations Committee and is an associate member of the Aviation Planning and Operations Committee. At the national level, Alfredo helps several of the Transportation Research Board Committees and is currently involved in the following committees: Low Volume Roads; Hydrology, Hydraulics and Water Quality; Pedestrian Safety; and Bicycle Transportation.

Alfredo served as the Chair of the local ASCE Transportation and Development Institute group during its first two years (2012-2014). The Florida West Coast Chapter of the ASCE has recognized Alfredo’s commitment to the profession and our community honoring him with the Young Engineer of the Year Award in 2014. As part of his involvement with the local engineering community, Alfredo currently serves as a Board Member of the Florida West Coast Branch for ASCE.