Vehicles {train, railroad}| {railroad train} can run on tracks.
force
Locomotives can use diesel engines or diesel-electric engines. Electric trains need a third rail, covered by insulator or buried in ground. Train shoe rides on third rail. Overhead wires can supply electricity. Arm reaches up from trolley to roller that rides on electric cable.
traction
Friction {traction, track} between rails and locomotive wheels pushes train.
grade
Track has angle {grade, track} to horizontal, which must be low enough for good traction.
railroad engine {iron horse}.
train cars {rolling stock}.
coach attached to moving underground cable {cable car}.
tracks raised above street level {elevated train} (el).
Open passenger cars {tram} can be on tracks or hang from cables.
rectangular {boxcar}.
small car with cabin, at train end {caboose}.
platform with side posts {flatcar}.
Tracks {track, train} {railroad track} have standard width {gauge, track} between rails: 4 feet 8 1/2 inches. Narrow-gauge railroad uses narrower width. Model trains use HO gauge, in which eighth inch equals one foot, or other gauges.
Railroad track {spur, track}| can have a dead-end branch, to hold waiting train cars or locomotives.
power rail {third rail} for electric train.
7-Machine-Transportation-Vehicle
Outline of Knowledge Database Home Page
Description of Outline of Knowledge Database
Date Modified: 2022.0225