I'd like examples not of parades or processions, but simply congestion from daily transit and commuting. Were any laws put in place to limit the amount of vehicles and animals on the road?
hi! additional information is welcome, but FYI there have been similar questions, so check these out for previous responses:
How long has traffic been around? Has it only been around since the advent of the automobile?...
Was there such a thing as a traffic jam before automobiles?
As for traffic controls, there may be something of interest in this FAQ section: