Most, but not all signage at the interchange on-ramps was updated at the same time.
Cars travel faster on highways than roads or streets, however they need on-ramps to function.
Hence, the majority of the on-ramps are traffic light controlled, depending on the density and speed of the traffic.
This control city appears on roads leading to a motorway and at on-ramps.
It is the use of traffic signals at freeway on-ramps to manage the rate of automobiles entering the freeway.
Ramp signals were installed in the late 2000s on many on-ramps, to regulate the flow onto the motorway.
Also, ramp tolls existed on exits 1, 3, and 4 (on-ramps exiting southbound or entering northbound), but were removed in 1978.
The on-ramp was later closed as well.
