>>1989325Thanks. Now, for a more detailed response.
If you look at fatalities involving trains, the overwhelming majority involves level crossings, unauthorized people on the track, and suicides. Note that trains tracks are usually hard to reach, outside of the level crossings and platforms.
Streetcars on the other hand are essentially one long level crossings, with light rail being slightly better.
By grade separating you remove the biggest cause of accidents in rail vehicles.
Japan has both railways and monorails and if you check the incident/accident list for the past 20 years, there is a single accident with a monorail, due to a hardware issue, material damage, but no fatalities.
