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Traffic lights

Traffic lights

By means of light signals, traffic lights control the crossing of an intersection, the access to bridges, tunnels and railway crossings, the acc…

Give way

Give way

A yield or give way sign indicates that merging drivers must prepare to stop if necessary to let a driver on another approach proceed. A driver …

Crossroad

Crossroad

A crossroad or intersection is a place where two or more roads or streets meet or cross. Crossroads may be classified by number of road segments…

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…

Caravan

Caravan

A caravan or camper is towed behind a road vehicle to provide a place to sleep which is more comfortable and protected than a tent. It provides …

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