Several new ramp meters have been implemented and activated throughout Spokane at on-ramps to both east and westbound I-90 with more coming. The ramp meters are used to space out vehicles as they enter I-90 to reduce the "platooning" of vehicles as they enter and reduce collisions. The ramp meters will also keep I-90 mainline at highway speeds.
What to expect
Spokane has slightly different variations to traditional ramp meters. While still utilizing a traffic light, depending on the on-ramp you may encounter a variation. At the westbound I-90 on-ramp from Browne/Division Street, drivers will be allowed two vehicles per green light to enter on I-90. At the eastbound I-90 on-ramp from Walnut Street, there are two lanes and the signal will release one vehicle in each lane simultaneously. At Monroe Street, the light will allow one vehicle per green light and the other ramp meters at Hamilton, US 195 and Browne/Division Street to eastbound I-90 will allow two lanes to form with the light alternating one vehicle per green light onto I-90.