Request for Question Clarification by
czh-ga
on
15 Nov 2003 18:12 PST
Hello d_g_ball-ga,
I?ve started researching your question and I need additional
information from you to be able to proceed. I?ve found some
information about Intelligent Transportation Systems and the
Electronic Toll-Collection Sensors that are included in them.
Please take a look at the two links I?ve listed below and tell me
which specific sensors you?re interested in. Also, please describe in
more detail what you mean by ?detailed analysis of each.? Are you
looking for market research? Are you interested in comparisons of
specific sensor? systems? geographic locations?
The more background information you can give, the more likely that I
will be able to find what you need.
I look forward to your clarification.
~ czh ~
http://www.itsdocs.fhwa.dot.gov/edldocs/13480/ch5.pdf
Electronic Toll ? Collection System
***** Description of components
http://www.wired.com/wired/archive/9.11/singapore-traffic.html
Issue 9.11 - Nov 2001
Singapore
The State As Traffic Cop
The country's 92 miles of freeways and major surface roads form a
seamless, centralized network. The law of traffic dynamics here is
that every action has a government-controlled reaction. This model of
an intelligent transportation system is uniquely Singaporean - a
traffic dictatorship, in which the Land Transport Authority has
complete say over traffic control decisions.
***** This article lists all the components of an Intelligent
Transportation System.
-------------------------------------------------
http://www.wired.com/wired/archive/9.11/singapore.html
Issue 9.11 - Nov 2001
It takes more than technology to solve the world's traffic problems.
While Singapore succeeds with an iron fist, the United States waits
for the invisible hand.
Singapore, that hyper-organized city-nation at the bottom of the Malay
Peninsula, is a living laboratory for intelligent transport systems, a
catch-all phrase for high tech strategies to gather data, manage flow,
and inform drivers of congestion ahead. Traffic does indeed move
noticeably smoother here than in American metropolitan areas of
comparable size - Atlanta, for instance. This morning's miracle was
courtesy of smart intersections that varied their red/green cycles
according to traffic, intelligent ramp meters that knew the density of
the congestion they spat me into, electronic toll collection, and the
real-time Web site. And all that was in turn dependent on having all
92 miles of Singapore's freeways and many surface roads wired for both
electronic data collection and video surveillance, so that the
island's entire road system is essentially one sentient organism. Most
of it operates automatically. The rest is controlled from a
video-walled Dr. Strangelove-style war room, where technicians boil as
much of the random as possible out of Singapore traffic.
