Operation

Because they are in conflict with straight-going vehicles, left-turning vehicles temporarily drive on the wrong side of the road. If they're not on the wrong side, they would be allocated for 2 additional cycles and make the STOP time thrice as long as the GO time. In a normal intersection , there would be 4 cycles.

This is how the C.F.I. works. Straight-going vehicles pass through the innermost section of the road. Pedestrians cross beside them. Left-turning vehicles move beside the pedestrians. Right-turning vehicles perpendicular to the straight-going vehicles move at the outermost section of the road.

In a Continuously Flowing Intersection, each cycle has a combination of straight and turning movements that were derived from the cycles of a conventional intersection.

This video shows the efficiency of a continuously flowing intersection:

The C.F.I. is simply an intersection with straight-going movements at the innermost section of the road and turning movements at the outermost section.

Home Page: http://crosstrafficlights.blogspot.com/

Definition

The continuously flowing intersection or C.F.I. is an unusual traffic system where displaced vehicles turn left on the wrong side of the road! This system allows simultaneous movements with the straight-going vehicles. It also eliminates the 2 cycles for turning. With the C.F.I. for intersections without infrastructures, there would be only 2 cycles. Each of these cycles will have straight and turning movements at the same time.

1st cycle

2nd cycle