Since public transportation is used mostly by poor people you should place bus stops there, as well as at potential sources of jobs (like industrial areas). Simply place bus stops around your city and people will travel between them (the concept of bus lines does not seem to exist in SimCity 4). They can also connect to each other and form cloverleaves (however, these are huge and take a lot of room).Ī bus network is the easiest and cheapest way to create public transportation. Avenues can get onramps by making an avenue go under a (raised) highway and a dialogue will appear giving you the option (works for roads, too).

Onramps can be created for roads by selecting the option in the highway tab. They can connect directly to the rest of the road network using avenues to 'end' them. You'll need to make long curves if you want to make highways turn, as they cannot have instant turns like roads and streets do. Zones cannot connect to a highway and neither can pedestrians walk on one. These are meant to be used in large cities to quickly get between places, however due to the nature of the commute paths taken it is hard to use them effectively if you do not plan them out before you start your city.

Simcity 4 bus stops