Which best describes how railroad companies were able to standardize their timetables in 1883?

The answer is: by working voluntarily. Standardized timetables were jointly stablished in 1883 by Canadian and Americans, thus eliminating the need of adhering to local times and allowing for a more efficient scheduling as the rail network continued to expand.

there is no chart here so no one can answer this.

england is crowded cold and polluted while north america was like the opposite