Transportation safety is a highly contentious issue in the design of cities and communities.
While urban designers, architects, and planners often encourage the use of aesthetic …

A critical concern of autonomous vehicles is safety. Different approaches have tried to
enhance driving safety to reduce the number of fatal crashes and severe injuries. As an …

This paper describes an experiment comparing the relative effectiveness of various types of
warnings on drivers' speed selection at curves. The experiment compared three types of …

By 2030, seventy-two million people, or fully one of every five Americans, will be aged sixty-
five or older, raising important concerns about how our cities, communities, and …

A method is presented to determine variable speed limits, taking account of road geometry
and vehicle characteristics. This method is based on a mathematical vehicle model and a …

To date, there has been little examination of the area of roadside safety on nonfreeway
urban roads. To understand better the design of safe roadsides in urban environments, this …

Motor vehicle crashes on curved roadway sections occur more frequently and tend to be
more severe than those on straight sections. Speed is a significant factor in many crashes …

ABSTRACT A great number of traffic accidents occur during curve negotiation maneuvers.
Most of these accidents could be avoided if drivers are provided with information that better …

The comfort threshold is one of the basic controls in designing horizontal alignment. Some
studies have implied that the recommended comfort thresholds are conservative because …

Unlike high-volume roads, for many low-volume country roads, curve advisory speeds
cannot be predetermined in office because of the absence of plan sheets. In many places …