ckebottle
6/6/2007 6:29:10 PM
Today I misjudged a red light turning left. The intersection had a camera and does anyone here know if they usually catch people running reds on left turns?
smaglik
6/7/2007 7:14:04 AM
depends what kind of camera. post a picture of it and i'll be able to tell you. i work with that sort of stuff.
smaglik
6/7/2007 7:14:28 AM
depends what kind of camera. post a picture of it and i'll be able to tell you. i work with that sort of stuff.
00AccordLX5spd
6/7/2007 7:43:20 AM
quote:
ORIGINAL: smaglik
depends what kind of camera. post a picture of it and i'll be able to tell you. i work with that sort of stuff.
Really? I've always wondered what you do for a living. You've got my attention
smaglik
6/7/2007 7:59:14 AM
Currently I work for Purdue, doing a post-doc here. I do research in the area of traffic signals,traffic flow, and lots of vehicle detection. We have done a ton of research in the last year regarding video detection, the use of cameras as opposed to loops in the pavement. The majority of cameras are either PTZs for surveillance (Traffic Ops Center) or detection units.
http://news.uns.purdue.edu/html4ever/2006/061114PeetaNextrans.html The link is a picture of me and my boss (I am not wearing the tie) at one of our data collection test sites. There are lots of camera in the background.
RTexasF
6/7/2007 9:00:19 AM
I think he'll find out for sure in 3-4 days.......
ckebottle
6/7/2007 6:10:56 PM
Dang 3-4 days? That fast? Yikes. Oh boy. I don't have a picture, but its the little camera thats on top of the pole that holds the traffic light (green yellow red) if that helps, probably not = /
smaglik
6/7/2007 7:02:18 PM
I seem to be post wh*ring this thread.
Did it look like this?
Thumbnail Image
ckebottle
6/7/2007 11:15:27 PM
No, it looks smaller than that. I noticed on that intersection it didn't have that "red light violation...." sign that others do with more visible cameras. Could this camera just be to see how traffic flow is and not red light camera? Somebody was telling me that they have some cameras which can be watched online to see how traffic flow is doing.
ckebottle
6/8/2007 1:08:00 PM
It looked very similar ot that. Am I screwed? Haven't got anything in mail yet.
Tony1M
6/8/2007 2:20:48 PM
quote:
ORIGINAL: smaglik
Currently I work for Purdue, doing a post-doc here. I do research in the area of traffic signals,traffic flow, and lots of vehicle detection. We have done a ton of research in the last year regarding video detection, the use of cameras as opposed to loops in the pavement. The majority of cameras are either PTZs for surveillance (Traffic Ops Center) or detection units.
http://news.uns.purdue.edu/html4ever/2006/061114PeetaNextrans.html
The link is a picture of me and my boss (I am not wearing the tie) at one of our data collection test sites. There are lots of camera in the background.
This is off topic, but what the heck.
Do you happen to know if intersections with these cameras show an increase in rear-end collisions?
At a particular intersection, from a pure vehicle-damage cost stand point, does the total cost of collisions (including the total cost of monitoring) go up or down with the addition of red light cameras?
The same question for injuries.
Thanks!
sir_nasty
6/8/2007 3:43:34 PM
Some new stoplights use what looks like a camera to detect if a car is waiting at the read light. It may not have been a camered (sp?) intersection just a different type of traffic detection.... Most of these items are shapped kind of like the white camera but smaller and typically black....
smaglik
6/9/2007 11:31:14 AM
quote:
ORIGINAL: ckebottle
It looked very similar ot that. Am I screwed? Haven't got anything in mail yet.
i doubt it. that's just a surveillance camera. but, you never know. i wouldnt worry too much though. those thing s dont have the resultion to snap a worthwhile photo of much.
smaglik
6/9/2007 11:39:37 AM
quote:
ORIGINAL: Tony1M
This is off topic, but what the heck.
Do you happen to know if intersections with these cameras show an increase in rear-end collisions?
At a particular intersection, from a pure vehicle-damage cost stand point, does the total cost of collisions (including the total cost of monitoring) go up or down with the addition of red light cameras?
The same question for injuries.
Thanks!
Im not familiar with any research in that area, but that is a good question. The proper way to answer your question is "Well, they should be stopping for the red light regardless."
I did a quick search
http://ntlsearch.bts.gov/tris/search.do?b1=1&f1=0&t1=kw%3Ared+kw%3Alight+kw%3Aaccident+kw%3Arate&r=1&d=tr&p=7&z=1&s=yr&o=1&new=n and this one relevant document shows that accident rates decrease. However, the abstract doesnt specify what type of collisions they were. I would guess it involves the entire intersection.
In all honesty, if you are following so close to the car in front of you that you cant stop in the event that they stop, well, there isnt much any traffic engineering can do to help you.
smaglik
6/9/2007 11:41:51 AM
quote:
ORIGINAL: sir_nasty
Some new stoplights use what looks like a camera to detect if a car is waiting at the read light. It may not have been a camered (sp?) intersection just a different type of traffic detection.... Most of these items are shapped kind of like the white camera but smaller and typically black....
The photo I showed in post 9 is a vehicle detection device.
