Zipper

Identical traffic approaching the same choke-point. The only difference between the two roads is how eager drivers are to get into the lane they need.

Source code on GitHub

Eagerness Top road Bottom road

0 waits until the last moment to change lanes; 100 gets over at the first opening and stays there.

Playback

Speed
Simulated time

Choke-point Type Lanes before Lanes continuing Cars taking the exit

Ringed cars want the exit.

Traffic Highway speed (mph) Off-ramp speed limit (mph) Arrivals (cars per second)

Top road · eagerness

Through choke-point: /min
Average trip
Trip std. dev.
Finished
On the road
Average speed: mph
Speed std. dev.: mph
Gave up on their lane

Bottom road · eagerness

Through choke-point: /min
Average trip
Trip std. dev.
Finished
On the road
Average speed: mph
Speed std. dev.: mph
Gave up on their lane