Glossary of "pavement / lane" technology and equipment

Pavement is an artificially formed road. It consists of the surface layer, base layer and roadbed. Expressway pavement (surface layer) can be roughly classified into concrete pavement and asphalt pavement. Brick and tiles are also used on sidewalks such as SA and PA.

asphalt pavement Paving (Asphalt concrete pavement)

It is formed by an asphalt mixture that mixes asphalt and aggregate (stone). Depending on the type of mixture, there are high-performance pavement (drainage pavement), gap pavement, composite pavement, goose asphalt pavement, etc.

concrete pavement Paving (Cement concrete pavement)

A pavement with a cement concrete slab as the surface layer. It is generally composed of the surface layer and the roadbed. It is more rigid and durable than the asphalt pavement.
Expressway it is used for paving in tunnels and toll gates where it is difficult to replace the pavement.

Driving lane So

Expressway number of lanes in the Standard will have to become a two-lane to three lanes. On a two-lane road, the left lane is called the first lane. For roads with three lanes, the first lane and the second lane are called from the left. The lane width (width) is based on 3.5m to 3.75m.

Overtaking lane Oshishisha Sen

The passing lane is the rightmost lane when there are multiple lanes on each side.
A lane intended to pass the preceding car.

Shoulder Rokata

This is the part that is further separated by the solid line (lane mark) on the leftmost lane from the main lane (first lane). The width is only 1.75m to 3.00m, and it is intended for the passage of emergency vehicles in the event of an abnormal situation, and there may be times when maintenance vehicles on the Expressway will work. You can't.

Climbing lane Tohashi Sen

Tight of inclination In-bound in the lane, which is installed in the slope, of necessity because of the tight inclination, (often found in large vehicles and cargo vehicles) car to cut the minimum speed (50km / h) is, to allow the low-speed traveling The lane that is installed.

lamp

A roadway that connects the roads that cross each other when they cross over the road or have different heights.