Module B2 - Slide 4
These are the 9 warrants listed in the MUTCD, section 4C.
Warrants 1-4: if the vehicle and pedestrian volumes are high enough, the warrant is satisfied (i.e., it passes that warrant)
Warrants 5 and 6: school crossings and coordinated signal systems (where all signals work together along a road) are situations that would raise the priority for installing a signal
Warrant 7: this warrant is satisfied if there have been a high number of crashes at the intersection
Warrant 8: this warrant is satisfied if installing a signal would assist in organizing traffic on the overall network of roads surrounding the intersection
Warrant 9: this warrant is satisfied if the intersection is located near a railroad at-grade crossing