http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
evaluation of supplemental signing at two-way stop-controlled intersections
A cross traffic accident/conflict was defined as an incident
accident data were obtained for six TWSC intersections in
accidents at TWSC intersections. Traffic conflict and
and a mean accident frequency of five per year. The
and conflicts were not significantly different where
determined to be a positive linear relationship. The
distributions were developed to establish 90 percentile
Drivers entering a two-way stop-controlled (TWSC)
effectiveness of these signs in reducing conflicts and
installed and three locations with only a standard STOP
intersection with similar approach geometries and volumes
intersections with 5,000 to I 0,000 total entering vehicles
involving a vehicle on the stopped approach and a vehicle on
levels for both accidents and conflicts at TWSC
may make the incorrect assumption that all approach legs are
objective of this thesis was to investigate the
per day. These values were found to be 18 conflicts per day
recommendations provide guidelines for future evaluations of
relationship between conflict and accident frequency was
required to stop at the intersection. To respond to this
safety concern, traffic engineers developed supplemental
sign. Only cross traffic conflicts/accidents were analyzed.
signs are generally placed directly underneath the STOP sign
signs to remind drivers on the stop-controlled roadway that
supplemental signs have been installed. Probability
Texas; three locations where supplemental signs had been
the through approach. Conflict data were collected with a
vehicles on the major roadway are not required to stop. The
video camera mounted on 9.1 meter telescoping mast, Accident
with a typical legend "CROSS TRAFFIC DOES NOT STOP." The
Issued also on microfiche from Lange Micrographics.
Includes bibliographical references: pages 74-76.