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+--- Thread: Keaau Bypass Merge (/showthread.php?tid=8466)
RE: Keaau Bypass Merge - mdd7000 - 02-01-2011
quote:The signs would have to be in pictures. [
Originally posted by DTisme
I've never seen a sign that says "alternate merge" or "zipper merge" in Hawaii. The "land ends" sign is, I believe, all Hawaii uses. Maybe we should petition the state to start. "Zipper Merge Ahead, 300 ft"? Love it. Traffic engineers for years have recommended L R L R merges. It's the signage that sucks. The notion that there is a right-of-way here (i.e., the "thru lane") is what confuses people. When people move from the left lane before the Keaau bottleneck to the right, they aren't trying to "take cuts," they are trying to move the traffic more efficiently. It's physics. Google "zipper merge" and see what you come up with.
]
RE: Keaau Bypass Merge - Chuysmom - 02-01-2011
I was at the merge recently and just following the every-other-car "rule" and there was a local woman driving an SUV with a lot of passengers who was determined to cut in front of me. When I finally just stopped and let her go, it made me giggle a little at her effort. She screamed "Yah, laugh you bitch!" Well, I have to say I was a little nervous riding behind them all the way to Pahoa. Didn't know how far they would take that anger.
Carrie
http://www.sapphiresoap.etsy.com
"Even the smallest person can change the course of the future..." Galadriel LOTR
RE: Keaau Bypass Merge - Bob Orts - 02-01-2011
Zipper, merge left, merge right, alternate feed, alternate merge... all this means nothing if the driver could care less about following the rules. So long as you have people who feel it’s a great personal accomplishment akin to curing cancer if they manage to just get one car ahead of where they were supposed to be, you will always have problems.
The best I’ve seen at any two to one lane changes has been the physical (erection of parallel speed humps or delineation poles, the use of metered lights (no personal interpretation of a green or red light) and strict enforcement. Otherwise they may work most of the time, but you'll always have that jerk.
RE: Keaau Bypass Merge - bystander - 02-01-2011
Many drivers here just don't know how to merge. There are some that are agressive and want to cut in front. Others are timid and scared of merging if the space between cars seems small to them. They slow way down and slow and bunch the cars behind them up as well. Now on Oahu drivers know how to merge. They have to get on and off the freeways.
RE: Keaau Bypass Merge - Kapohocat - 02-02-2011
Can some one explain the physics to me of 2 lanes doing 5 mph merging to 1 lane doing 35-40 mph? double amt of cars merging into 1/2 the amount of lanes goes 7 times as fast?
Any of the brainiacs here have a formula for that? (dont tell me about the speed up and merge, slam on brakes and merge... I want a real forumla! lol)
RE: Keaau Bypass Merge - Wegian - 02-02-2011
I know! I know!
Venturi effect....
RE: Keaau Bypass Merge - Kapohocat - 02-02-2011
quote:
Originally posted by Wegian
I know! I know!
Venturi effect....
DUH!! Why didnt i think of that, Wegian!! I knew there was a smarty pants here!
http://en.wikipedia.org/wiki/Venturi_effect
RE: Keaau Bypass Merge - Wegian - 02-02-2011
Yup. Sometimes physics works - even in Puna...
RE: Keaau Bypass Merge - Greg - 02-02-2011
Aaaaaaaaaaah.........pneumatics!
RE: Keaau Bypass Merge - oink - 02-02-2011
That was pretty good.
Pua`a
S. FL
Big Islander to be.