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Slippery road

Slippery road

Road slipperiness is a condition of low skid resistance due to insufficient road friction. It is a result of snow, ice, water, loose material an…

Guardrail

Guardrail

A guardrail or crash barrier is a barrier placed next to roads to prevent vehicles from leaving the road in a lateral direction, tilting or trav…

Fuel

Fuel

The fuel economy of an automobile relates distance traveled by a vehicle and the amount of fuel consumed. Consumption can be expressed in terms …

Coolant

Coolant

A coolant is a substance, typically liquid or gas, that is used to reduce or regulate the temperature of a system. An ideal coolant has high the…

Bus

Bus

A bus is a vehicle intended for the transportation of people. Buses can have a capacity as high as 300 passengers. The most common type is the s…

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