One thing is that it is pretty easy to get started with transit by running buses. They can use existing roads, which means they are as slow as traffic. They are

One thing is that it is pretty easy to get started with transit by running buses. They can use existing roads, which means they are as slow as traffic. They are flexible. They have a bad reputation in US but that is partly from bad service. Rail is expensive and the US is bad at building it. But it has huge capacity. The expense with roads comes in the maintenance and growth. Growth farther out means congestion which means adding new lanes. Transit helps with downsizing roads and reducing wear.