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Old 06-05-2012, 01:25 PM
 
Location: In The Thin Air
12,219 posts, read 7,993,375 times
Reputation: 8869

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The light on Lucent to get on east bound C470 is ridiculous when traffic is moving. Seems like you only have 100 feet before you have to merge.
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Old 06-05-2012, 01:51 PM
 
Location: Coos Bay, Oregon
7,142 posts, read 8,817,525 times
Reputation: 7732
Quote:
Originally Posted by SkiScree View Post
Same here at US36 and Sheridan; the traffic is never backed up and is usually going over the speed limit (this is right where it goes from 65 to 55). It's always crazy getting on with my little beater because you literally have less than 100 yards to get up to at least 60 or you're cutting people off.

I've learned to embrace the fear.
Two thoughts.

1. If traffic is never backed up, then that is a good indication that the lights are doing their job as they were designed to do.

2. If your car can't accelerate from 0 - 60 in 100 yards, then maybe you should just stay on the surface streets. Just saying.
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Old 06-05-2012, 02:07 PM
 
181 posts, read 518,737 times
Reputation: 142
Quote:
Originally Posted by KaaBoom View Post
If your car can't accelerate from 0 - 60 in 100 yards, then maybe you should just stay on the surface streets.
That implies 0-60 in around 6 seconds. That's a pretty fast car.
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Old 06-05-2012, 03:35 PM
 
Location: here
24,839 posts, read 29,910,637 times
Reputation: 32382
Quote:
Originally Posted by denverian View Post
I've never experienced any issues with the on-ramp meters here. They seem to be the same as in California. I always assumed they meant that only one car per lane, per green. Two cars always go at the same time. And no need for a drag race... because the traffic on the freeway is usually going about 5 mph. anyway lol! What's the hurry?
IME in California, the light is only green on one side at a time. So 2 cars from the left go, then 2 cars, from the right, etc. that way makes way more sense than both lights going green at the same time like in CO. Even if you aren't "drag racing" you till have to guess if the other car is going to pull ahead of you or if you should try to pull ahead. It could be avoided if they did one side at a time.
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Old 06-05-2012, 09:20 PM
 
436 posts, read 696,279 times
Reputation: 590
Quote:
Originally Posted by robertzimmerman View Post
That implies 0-60 in around 6 seconds. That's a pretty fast car.
Agreed, a bit ambitious; but 0-60 in 8-10 seconds for most cars ought to do it. Not 0-60 in 60 seconds.

They're not simply entrance ramps, people. They're acceleration lanes. At the end of the lane you're supposed to be at freeway speed.
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Old 06-05-2012, 09:42 PM
 
Location: RSM
5,113 posts, read 17,397,807 times
Reputation: 1892
Quote:
Originally Posted by Kibbiekat View Post
They create a drag race situation. Stupid. I am used to the ones in CA that alternate 2 cars per green, one lane at a time. No one has to jockey for position. I couldn't believe it when we moved here. Are there no traffic engineers that realize this is not the best way?
Yea, and those 2 cars per lane per green don't work because people don't know how to read the sign. End up 1 car per green and then the backup gets huge
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Old 06-05-2012, 11:09 PM
 
Location: The North
5,065 posts, read 9,041,199 times
Reputation: 4033
Quote:
Originally Posted by bhcompy View Post
Yea, and those 2 cars per lane per green don't work because people don't know how to read the sign. End up 1 car per green and then the backup gets huge
Simple solution to that:

1. Do one light green at a time in quicker intervals.
2. Have police enforcing it.

In California they have strict enforcement of the system and especially of the carpool lanes to get around them. If people don't feel they are doing anything but some weak civic duty of course they won't pay attention to the lights and will just go as they can. But given a ticket that is basically the same as running a red light as you can get in California and people will quickly pay attention.
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Old 06-06-2012, 12:38 AM
 
Location: Coos Bay, Oregon
7,142 posts, read 8,817,525 times
Reputation: 7732
Quote:
Originally Posted by robertzimmerman View Post
That implies 0-60 in around 6 seconds. That's a pretty fast car.
Actually that implies 0-60 in around 10 seconds. 0-60 in six seconds would be reached in around 60 yards (if my math is right). We are talking about the length of a football field. I'd hate to drive a car that can't accelerate to 60 mph in the length of a football field.

My old 1989 Honda CRX has no problem stopping at a meter light, and accelerating to freeway speed before entering the freeway traffic. And the car is nowhere near as fast as it used to be.
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Old 06-06-2012, 06:51 AM
 
776 posts, read 2,236,401 times
Reputation: 840
Quote:
Originally Posted by KaaBoom View Post
Actually that implies 0-60 in around 10 seconds. 0-60 in six seconds would be reached in around 60 yards (if my math is right).
Wouldn't the math need an acceleration curve for an "average" car?
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Old 06-06-2012, 09:01 AM
 
181 posts, read 518,737 times
Reputation: 142
It would need a curve, but that's impossible to know for [some car]

D = (Vf + Vo)*t/2 where:
D is the unknown distance
Vf is the final speed
Vo is the initial speed
t is the elapsed time

Vf = 60 mph = 1/60 miles per second (mps)
Vo = 0 mph = 0 mps
D is unknown
t = 6 s

D = (1/60)*6/2 = 0.0501 miles = 264 ft = 88 yd
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