Toronto is largely built on a grid-based road system with a few notable exceptions. These include streets such as Davenport Road, which follows an old native trail, while others, such as Kingston Road, were originally constructed to link Toronto with other settlements in Ontario. The downtown core is built to a fine grain, human scale, mostly consisting of four lane arterial and collector roads. Outside the downtown core, most arterial roads have two or three lanes of traffic in each direction. Toronto's road system was mainly designed for cars, and is quite easy to navigate. There are some anomalies; for example, Lawrence Avenue and St. Clair Avenue are both split into two sections by the Don Valley, and, in the case of St. Clair Avenue, the drive between the two sections is almost 15 minutes. Roads sometimes change names, and the 1998 Amalgamation has caused some doubling in road names, although this is usually confined to smaller, more residential, roads.
The main north-south arteries, from west to east, are Kipling Avenue, Islington Avenue, Royal York Road, Jane Street, Keele Street/Weston Road, Dufferin Street, Bathurst Street, Yonge Street, Bayview Avenue, Leslie Street, Don Mills Road, Victoria Park Avenue, Warden Avenue, Kennedy Road, McCowan Road, Markham Road, and Morningside Avenue. The main east-west arteries, from north to south, are Steeles Avenue, Finch Avenue, Sheppard Avenue, Wilson Avenue/York Mills Road/Ellesmere Road (the latter two connected by Parkwoods Village Drive), Lawrence Avenue, Eglinton Avenue, St. Clair Avenue, Bloor Street/Danforth Avenue, Dundas Street, Queen Street West and East, and Lake Shore Boulevard/Kingston Road.