Streets are destinations and should be design as such. They are low speed 20-40kpm with many places for pedestrians to cross and walk, there are driveways and intersections. Homes and businesses face streets. Street parking is common. Streets are "multi-use" for all modes of transportation, this includes walking and cycling. In some cases access for vehicles is restricted to pedestrians only use, or a mix of public transportation and pedestrian walking/cycling traffic. Lanes of traffic should not exceed two lanes.
Images of streets
Roads are throughways and should be designed as such. They have a higher speed between 50-80kpm with reduced conflict zones between vehicles traffic and pedestrian traffic. Roads don't have driveways. Signalized intersections are not used, roundabouts and on/off ramps are preferred. Homes and businesses do not face roads, there is no street parking on roads. Roads generally have center mediums such as grass or curbs to decrease left turn conflict zones. Lanes of traffic should not exceed three lanes. Roads act as a slower speed hwy without the "over engineering " that a hwy and its travel speeds require.
Images of roads:
Proper roadway design should mean a decreased need of signalized intersections in city and surrounding neighborhoods. This has a benefit of decrease costs for municipalities as signalized intersections are cost intensive to build and maintain. It also means properly designed city streets become more enjoyable to walk and experience in person.