Cross Section of a Road & Street

 

cross section of a road

Road: thoroughfare connecting two geographical points, usually urban centers.

 

solid line 

Line demarcating the edge of the roadway or, when in the center of the roadway, indicating that passing is prohibited.

broken line 

Line demarcating the two lanes of the roadway and showing that passing is permitted.

subgrade 

Layer supporting the base course and the subbase and providing drainage.

slope 

Steeply sloped ground between the ditch and the bank and between the ditch and the shoulder.

ditch 

Ditch parallel to the roadway; surface water drains into it.

subbase 

Base of a roadway, made up of coarse compacted gravel, making the roadway solid and stable.

bank 

Natural land along the edge of the road.

base course 

Top foundation layer, made up of fine compacted material; the driving surface lies on it.

shoulder 

Area between the roadway and the ditch, providing the roadway lateral support; it is also a place for emergency stops.

bed 

Composed of the embankment and the earth foundation; the base rests on it.

earth foundation 

Part of the ground that was not excavated during the road’s construction.

embankment 

Layers of material used to build up or level the route the road is to take.

base 

Series of layers above the embankment reducing stress exerted by the traffic and preventing the bed from deforming.

surface course 

Roadway’s driving surface; it is smooth, impermeable and provides a good grip for vehicles.

roadway 

Surface upon which vehicles drive.

 

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cross section of a street

Depiction of a network of cables and piping systems buried beneath a roadway.

 

 

main sewer 

Large-diameter pipe that collects wastewater and sewer runoff and conveys them to a treatment plant.

gas main 

Pipe that conveys gas to buildings and houses.

sidewalk 

Pedestrian walkway bordering a street.

manhole 

Hole with a removable cover for accessing the water mains.

fire hydrant 

A pipe connected to a water main; firefighters attach their hoses to it to supply their trucks.

storm drain 

Conduit connecting a building’s downspout to the sewer.

barrier 

Movable fence placed across the roadway, sidewalk or elsewhere to redirect traffic.

sewer 

Pipe that collects wastewater and runoff and conveys them to the main sewer.

water main 

Pipe that conveys drinking water to buildings and residences.

service main 

Extremely high-flow pipe linked to smaller distribution pipes with far smaller volumes of flow.

electricity cable 

Cable linking an electrical power station to its users.

telephone cable 

Cable linking a telephone exchange to its users.

bus shelter 

Covered shelter for public transit users.

bus stop 

Area where buses stop to let passengers on and off.

pedestrian crossing 

Lane that is reserved for pedestrian traffic as indicated by stripes painted on the roadway at intersections.

traffic light 

Automated lighting device that controls traffic at some intersections.

curb 

Masonry construction bordering the roadway and built above it to control water flow.

median strip 

A strip separating traffic lanes that go in opposite directions; also called a center divider.

roadway 

Surface upon which vehicles drive.

street light 

Automated device used to illuminate a public thoroughfare.

 

 

source: www.visualdictionaryonline.com