If you're not already doing that, then yes you do. If you have just one mode of traffic ("everything is a car") , buses and fire-engines can get stuck in traff

If you're not already doing that, then yes you do. If you have just one mode of traffic ("everything is a car") , buses and fire-engines can get stuck in traffic, disabled people might not be able to park in front of the door, and delivery vans might end up blocking the road all over the place. Once you start splitting traffic modes and managing them separately, you'll find that deliveries, moving trucks, emergency services and disabled mobility are all examples of modes that you could be splitting and managing separately, to get them to their destinations as quickly and efficiently as possible.