^^^ The key is to find the right mix of headways and local density to justify the operating costs of a tram route. The
TTC's loading standards are a good example of how high to aim: The Hogtown ALRV and the
Siemens S-70 Avanto, for example, are similar enough for government work that you can tell you'll need about a hundred passengers per vehicle per hour in rush hour, and between sixty and eighty in off-peak hours, to keep the lights on and pay the drivers. If you play your cards right, though, the 240-passenger crush load on an Avanto (or even the 205-passenger crush load on an ALRV) will give you the total-day leeway by way of paying rush-hour customers.