The ramp and variable speed limit area is shown in fig.\ref{513251} . The ramp control scheme set up in two ways. One is green light is turned on as long as the congestion area's speed is faster than 18 m/s and turned off when the congestion area's speed is below 18 m/s. The other control scheme is giving 4 seconds green in each lane and 4 seconds for the red light for both lanes. The Variable speed limits design is very simple if the congestion average speed is below 18 m/s it sets up as 18 m/s or not its maximum speed limit goes back to the original speed limit (24 m/s).