The difference between light rail and subway

Light rail and subway are two different forms of urban rail transit systems, which are different in scale and capacity, operating speed, vehicle types, line characteristics, plane curve and construction cost.

1, scale and capacity

The subway system is usually large in scale, long in line and large in passenger capacity, and can carry more passengers. Light rail system is usually small in scale, short in line length and small in passenger capacity.

2. Running speed

The subway system usually runs faster, which can provide higher running speed and shorter distance between stations. The running speed of light rail system is relatively slow, which is usually suitable for short-distance traffic demand within the city.

3. Model

Subway systems usually use subway trains, which are usually long and closed. Light rail systems usually use light rail vehicles, which are relatively short and open.

4. Line characteristics

The subway system is usually built underground or elevated in the city, and the lines are relatively independent and are not shared with other modes of transportation. Light rail system is usually built on urban ground or elevated, and the lines may be shared with other modes of transportation.

5. Plane curve

The radius of the plane curve of the subway is not less than 300m, and the light rail is generally between 100m-200m.

6. Project cost

The construction cost of subway system is usually high, which requires large-scale underground or elevated construction. The construction cost of light rail system is relatively low, and it is easier to expand and adjust the line.