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Old 02-28-2008, 07:38 PM
 
Location: Nashville, TN
486 posts, read 1,896,738 times
Reputation: 152

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What is with the stoplights at freeway entrances? I was in LA about a week or two ago and never in my life have I seen stoplights on an interstate ramp. Are they connected with the "metering on" signs I saw also? This is completely foreign to me where here in KY, TN, OH, IN, VA, NC, GA, etc, we don't have stoplights on an interstate.
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Old 02-28-2008, 07:41 PM
 
1,786 posts, read 6,897,991 times
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Nothing more than a flow control mechanism. Does it work? Who knows? But it keeps people employed . . . changing light bulbs.
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Old 02-28-2008, 07:52 PM
 
Location: West LA
723 posts, read 2,998,339 times
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Quote:
Originally Posted by teebird1012 View Post
What is with the stoplights at freeway entrances? I was in LA about a week or two ago and never in my life have I seen stoplights on an interstate ramp. Are they connected with the "metering on" signs I saw also? This is completely foreign to me where here in KY, TN, OH, IN, VA, NC, GA, etc, we don't have stoplights on an interstate.
Farm buggies don't really need traffic lights anyway.
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Old 02-28-2008, 07:52 PM
 
11,715 posts, read 40,441,334 times
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Those stop lights aren't ON the interstate. They're on the ramp leading to the interstate. The only exception I know if is the metering lights were the 105 ends into the 605. Anyway, I believe the purpose twofold: 1) trickle in the people getting on the freeway so they don't all hit the slow lane at once and cause a massive slowdown on the freeway and 2) create a time penalty for using the freeway so its less beneficial over short distances, the result of which is more people choosing surface streets over the freeway for a short hop, thus reducing freeway traffic for people going longer distances.
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Old 02-28-2008, 07:55 PM
 
Location: CITY OF ANGELS AND CONSTANT DANGER
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yup its so people dont bombard a particular freeway at ruch hour. they just trickle in 3 by 3 or one by one.
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Old 02-28-2008, 11:45 PM
 
Location: Way on the outskirts of LA LA land.
3,051 posts, read 11,589,625 times
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Quote:
Originally Posted by EscapeCalifornia View Post
Those stop lights aren't ON the interstate. They're on the ramp leading to the interstate. The only exception I know if is the metering lights were the 105 ends into the 605.
Although they haven't been activated yet, they have also added these lights where the 118 freeway merges onto the 210 freeway. I've heard they added them where the 605 and 57 freeways merge onto the 210, also. In fact, I heard at least one of those was being activated this week (the one on the 57, I believe).
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Old 02-29-2008, 12:06 AM
 
111 posts, read 466,327 times
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Quote:
Originally Posted by JackSparrow View Post
Farm buggies don't really need traffic lights anyway.

dont be an ass.....typical california ego trip....Tennessee and georgia aint no joke! atlanta's bumpin'
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Old 02-29-2008, 05:47 AM
 
Location: Nashville, TN
486 posts, read 1,896,738 times
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I figured that, but wasn't quite sure. I spend a lot of time in Atlanta where the traffic is pretty comparable (285 is similar to 405 in my opinion), but I wasn't sure.
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Old 02-29-2008, 06:31 AM
 
Location: Chicago, IL
190 posts, read 982,069 times
Reputation: 60
Quote:
Originally Posted by teebird1012 View Post
What is with the stoplights at freeway entrances? I was in LA about a week or two ago and never in my life have I seen stoplights on an interstate ramp. Are they connected with the "metering on" signs I saw also? This is completely foreign to me where here in KY, TN, OH, IN, VA, NC, GA, etc, we don't have stoplights on an interstate.
Traffic flow. Many major metropolitan areas utilize this form of traffic management now. We've had them in New York for a while on 495 on Long Island and in certain other areas in and around New York City. I'm not sure if I remember the metering lights on California freeways doing this, but the lights on our expressways here actually change their frequency of green lights based on the traffic flow on the main road. It's pretty nifty, but it doesn't seem to have helped traffic congestion at all around these parts. We have the third worse traffic jams in the country, next to L.A. (No. 1) and Chicago (No. 2).
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