>>1522386Wrong on many counts
For one,subway/elevated rail is usually on embanked earth right up until it reaches a downtown. A monorail would have to be elevated 100% of the time. So it's not cheaper.
Second, creating long beams of pre-stressed concrete and their poured-in-place supports, then fitting them with safety walkways is more difficult than laying ballast, ties, sleepers, and rail. Also if you combine multiple lines at downtown stations you're going to be operating ultra-heavy switches that cause derailments if they're not set properly.
Lastly, they're just outnumbered. It's better to have a dozen railcar manufacturers across the globe compete for contracts than one or two specialists that might shutdown the division in a decade.
>>1521882The benefits they do offer are better acceleration (good for multiple close stations), better braking, steeper climbing abilities and more open visual space from the streetlevel. Unless your city is continously dense and built on mountains or foothills (See: Tokyo, Chongqing, Los Angeles) these benefits don't pay.
