It looks an awful lot like roads,
Rail is better than roads because it doesn't involve tires. Tires are awful. Doesn't have to be Skytran, but we should be using rails.
The vehicles are less versatile, but the tracks can go places roads can't, period the end, let alone places roads can't go cost-effectively.
The problem is that everybody wants to go to work at the same time, and thus you'd need a lot of SkyTran vehicles.
One solution to this problem is to permit people to have personal SkyTran (or whatever PRT) vehicles. They get regular inspections like vehicles in much of Europe and unlike vehicles in most of the USA, and no problem. Any successful rail-based PRT system also needs push-pull-ability, though; any vehicle needs to be able to push not just itself but also another vehicle. You also need to be able to "back" a tow "vehicle" (needn't resemble a car at all, or even be manned) down the track to retrieve failed vehicles, for those times when multiple vehicles fail. But it's all doable. PRT with only public vehicles is probably a non-starter.
A better solution is not having to travel at all, or not all at the same time.
That would be great, but there's also a lot of reasons why it's advantageous to have everyone at work at the same time.