The layout of these lo-motor routes should be carefully considered. Good candidates are quiet residential streets, especially where residents are clamoring for new traffic-calming measures. Important destinations need to be connected by reasonably direct lo-motor routes. Where lo-motor routes cross regular streets, clearly placed signs and crosswalks should ensure the right of way to pedestrians and bicyclists in the absence of traffic lights. And no diesel vehicle, even a refrigerated truck, should be allowed to idle next to a low motor street.
People have a right to protection.
Let's make it illegal to endlessly idle a diesel truck in a public place where people will be forced to breathe the fumes. Ooh, just one slight problem. Refrigerated trucks really have to keep running to keep their contents from thawing out and spoiling. So they have to be exempt. They can spew as many pollutants as they see fit, anywhere in public, otherwise it would be a hardship for them.