The streets of London were as crowded as they are today (frankly I don't see much difference when I visit). In the report the commission makes all sorts of recommendations for fixing the traffic problems, including making it a law that slower traffic drive close to the curb (or "kerb" as they penned it) and adding more electric tramways above ground.
The information about the demographics of London and those who traveled into the city to work are fascinating as well.
Report of the Royal commission appointed to inquire into and report upon the means of locomotion and transport in London.
Printed for H.M. Stationery off., by Wyman and sons, limited
Written in English.
If you feel like reading the report, here you go! For a report over a hundred years old, it's pretty comprehensive and very impressive.