Vissim Results for the given traffic counts. It is clear that the roundabout is the most efficient design
Existing northbound
Roundabout for northbound
Southbound traffic signal 1
Southbound traffic signal 2
Roundabout for southbound
Alternative designs for the southbound side. The first design implements a traffic light at the confusing intersection and the removal onto the southbound entrance ramp onto I-95, the second design utilizes a roundabout at the same location, and the third design also implements a traffic signal, however the off ramp on the southbound side will be taken away in addition