I was thinking, why is there a single lane that people have to quickly enter and exit from when driving on a cloverleaf interchange? Why isn't there a third lane the continues? What I'm saying you could have a zipper merge from people coming into that lane while the same people enter to get in the other direction. I will attach a drawing. (once I figure out how)
Are you referring to a collector/distributor lane that separates weaving traffic from mainline traffic? These already exist in many places. Example:https://goo.gl/maps/jxVp57PHPzK2 (https://goo.gl/maps/jxVp57PHPzK2)
A very similar concept exists at the I-95/US 64 (future [blech!] I-87) cloverleaf interchange near Rocky Mount. NC; the C/D lanes in both directions on US 64 are separated from the main through lanes by painted "double-double" lines. Interestingly, I-95 employs physically separated C/D lanes in both directions here.
Quote from: bendim on June 01, 2017, 10:48:15 PM
I was thinking, why is there a single lane that people have to quickly enter and exit from when driving on a cloverleaf interchange? Why isn't there a third lane the continues? What I'm saying you could have a zipper merge from people coming into that lane while the same people enter to get in the other direction. I will attach a drawing. (once I figure out how)
If you are refering to just having the weave lane extended beyond the exiting loop, there are a few out there - one of which is on westbound US 30 at I-35 in Ames, Iowa: Google Aerial (https://www.google.com/maps/@42.0075636,-93.5715968,137m/data=!3m1!1e3?hl=en)
Quote from: Revive 755 on June 03, 2017, 09:40:06 PM
Quote from: bendim on June 01, 2017, 10:48:15 PM
I was thinking, why is there a single lane that people have to quickly enter and exit from when driving on a cloverleaf interchange? Why isn't there a third lane the continues? What I'm saying you could have a zipper merge from people coming into that lane while the same people enter to get in the other direction. I will attach a drawing. (once I figure out how)
If you are refering to just having the weave lane extended beyond the exiting loop, there are a few out there - one of which is on westbound US 30 at I-35 in Ames, Iowa: Google Aerial (https://www.google.com/maps/@42.0075636,-93.5715968,137m/data=!3m1!1e3?hl=en)
If that is indeed what the OP is referring to, it is probably more common than you'd think. In SLC, it occurs on all four directions at the 215/201 cloverleaf, on 80 east at the half cloverleaf at Foothill, and on 80 west at the Bangerter cloverleaf (which also uses a separated C/D lane).