Societies changed -> technologies changed to suit these societies -> cars got faster -> safe not safe accidents happened -> insurance companies complaining -> people complaining -> lobbying, -> speed limits changed.
Looking for answer to the same question but cannot find answers I think its because of the advancements in technology so as the vehicles get faster things need to be changed to suit the speeds.
Chloe and kelsey are my sisters and I'm sitting next to jess and aiden