|
New
developments about Berkeley's innovative brake light system
for city buses.
Original article: If You Can See This, You're Too
Close
http://www.coe.berkeley.edu/labnotes/0502/lightbar.html
An innovative
signal light developed at UC Berkeley that warns drivers
when to back off the tail of a bus is currently being tested
on two buses in Ann Arbor, Michigan. Designed by Berkeley
professor of vision science and bioengineering Theodore
E. Cohn, the system consists of a five-foot wide bar of
LED lights mounted on the rear of the bus.
When a radar system also mounted on the back of the bus
detects that a car is too close, approaching too rapidly,
or both, it triggers the light bar warning system. The lights
then flash in a pattern optimized to take advantage of the
fastest pathways in a human's visual nervous system. The
Ann Arbor Transit Administration is conducting the field
tests with research consultants Veridian Inc.
The research was first profiled in the May/June 2002 issue
of Lab Notes. Articles in the New York Times and Chicago
Tribune followed.
|
|
