Environmental Review Toolkit
Accelerating Project Delivery

Causes of Congestion

This pie chart, entitled "Causes of Congestion," shows six factors that contribute to congestion on the road. These include Bottlenecks (40%), Traffic Incidents (25%), Bad Weather (15%), Work Zones (10%), Poor Signal Timing (5%), and Special Events (5%).

Back to October Newsletter

spacer
spacer
HEP Home Planning Environment Real Estate

Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000