Addressing Encroachment-Related Safety Issues in Work Zones: A Guide
Current guidance on impact conditions
and clear zone requirements for vehicle encroachments in work zones is adequate. However, researchers may want to consider developing additional guidance for barrier type use in work zones
and on the amount of lateral clearance that should be provided with use of traffic control devices
placed on the left or right shoulder.
NCHRP Research Report 1055: Addressing Encroachment-Related Safety Issues in Work Zones: A Guide,
from TRB's National Cooperative Highway Research Program,
provides an analysis of data from several sources, including state crash databases and the
National Highway Traffic Safety Administration's National Motor Vehicle Crash Causation Survey.
Supplemental to the report are
NCHRP Web-Only Document 361: Determination of Work Zone Encroachments and a
presentation describing the research.
This Summary Last Modified On: 6/8/2023