That's interesting. Reducing overall traffic speed would render most traffic lights obsolete. Traffic lights are only necessary in order to allow heavy machiner

That's interesting. Reducing overall traffic speed would render most traffic lights obsolete. Traffic lights are only necessary in order to allow heavy machinery going >30mph in dense areas. I think we will have to ask ourselves the question in the future: do we want heavy machinery at high speed in populated areas including red lights for all other means of transportation - or do we want populated areas with no/almost no traffic lights and faster traffic for foot/cycling traffic?