Berkeley CSUA MOTD:Entry 38325
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2025/05/24 [General] UID:1000 Activity:popular
5/24    

2005/6/27-28 [Transportation/Car] UID:38325 Activity:nil
6/27    Where does http://511.org get its traffic speed information?
        \_ probably sigalert
        \_ Traffic data is big bucks.  There are lots of companies that sell
           that.  http://511.org however probably gets it right from the governmental
           source rather than having to buy it from a reseller.
        \_ Your FasTrack transponder. CalTrans installed sensors on some exits
           or overhead passes and calculates checkpoints. (e.g. transponder A
           hits first checkpoint on University Ave exit on I-80W at 9:16:05,
           and it hits second checkpoint on Ashby Ave at 9:20:03, therefore
           speed is distance between exits divide by # of elapsed time). I
           remember some privacy-nazi complained that CalTrans collect such
           data from their FasTrack. Grow up!
           \_ is the above true?  Could you point me to an article on
              the web about the technical details? - danh
2025/05/24 [General] UID:1000 Activity:popular
5/24    

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7/23    Are all traffic engineers imbeciles or is it just the Silicon
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	...
2007/4/9-12 [Transportation/Car] UID:46240 Activity:moderate
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2006/10/26-29 [Transportation/Car, Transportation/Car/Hybrid] UID:44995 Activity:kinda low
10/26   Schwartzenegger grants DMV additional stickers, allowing up to
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2004/9/15-16 [Transportation/Car, Transportation/Car/Hybrid] UID:33551 Activity:high
9/15    How do sites like http://sigalert.com work- do they have cameras along the
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        \_ I think CalTrans provides the data; they must have some sort of sensors
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2003/11/24-25 [Transportation/Car] UID:11207 Activity:high
11/24   Anybody here drive a Subaru?  What model do you have and how long
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2002/12/11-13 [Politics/Domestic/California, Transportation/Car] UID:26788 Activity:high
12/11   Is there any discount for FasTrak users on bridges?  Someone told me
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2000/7/13-15 [Transportation/Car] UID:18658 Activity:kinda low
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1998/10/30-31 [Transportation/Car] UID:14859 Activity:moderate
10/30   Where is a good web site to obtain Northern Cal traffic data? For
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	...
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