In the early days, the speed limit was indeed walking pace - often with a person needing to walk in front waving a flag! https://en.wikipedia.org/wiki/Locomoti

In the early days, the speed limit was indeed walking pace - often with a person needing to walk in front waving a flag! https://en.wikipedia.org/wiki/Locomotive_Acts#Locomotives_Act_1865_(Red_Flag_Act) https://en.wikipedia.org/wiki/Locomotive_Acts#Locomotives_Ac...