I love trams, light rail, and subway systems. I've had to think long and hard about why. Busses have notable advantages for flexibility and redundancy in the system, so why do I prefer to use a railed transit solution?

For light rail, grade separated trams, and subways it's easy: they're faster in the city. Like... WAY faster. They don't fight traffic so I wait a few minutes (at most) in any city with real transit solutions, ride for a short bit, hop off, and I'm there. Not having to deal with my car is freedom.

So... trams.... why trams over busses?

First of all they're bigger. There's more elbow room and it's easier to get on and off. It's easier for a group of people (see: me and the kids) to all climb on and make room. The doors are larger and it's easier to use multiple doors to load a large group so the people getting on and off a tram can go much faster. There is less shuffling along trying to wedge yourselves into the tram like you're forced to do on a bus.

Second, they're predictable and have a visible route. When I'm walking around, I can tell where the tram will be because I can follow the rails. I don't have to guess what the route will be or where I should go to meet it. Yes, busses have signs every so often, but it's not nearly the same as seeing the rails and knowing I'm on the route. This is especially true if they do move the bus route (which is what everyone who advocates for busses says is a good thing), and I don't know it. The bus is just gone.

Thirdly, the tram drives in a predictable path. I can be near it and know where it's going to go. In fact, whole big crowds of people do it all the time in plazas in Europe. You can walk near the rails and know that you're still safe. Check out the plaza in front of the main train station in Amsterdam. They chose to run the trams right through it, but not allow busses since they weren't safe and predictable enough.

Fourth, they're quiet. Trolley Busses get this too, but trams have had it a long time. They can co-exist with a people-oriented space without being too disruptive. When you sit in a cafe talking with your friends and the tram goes by it's no big deal. When a diesel bus goes by it's incredibly noisy.

Lastly, they're a community commitment. When a city installs a tram, the whole city knows that the route it travels will be supported for a long time. If you choose to live near a stop, you'll have transit. If you're choosing to start a business, you'll want to be close to the tram line so customers can easily get there. The same isn't nearly as true for a bus line. I haven't really pinned down why yet, but there's a very different feel to rolling along on a tram while looking at businesses to visit, and rolling along on a bus. You just don't have the same kind of connection to the street around you on a bus that you do on a tram.