East Nippon Expressway Company Limited

Expressway service

NEXCO EAST

Maintenance

In order to ensure safety and reliability, we carry out efficient maintenance, taking life cycle cost into consideration.

We have state-of-the-art investigation and inspection technologies to ensure efficient maintenance.

Investigation and inspection technologies

We develop investigation and inspection technologies to identify structural damage and do necessary maintenance.

Inspection for cracks in tunnels using lasers

Inspection for cracks in tunnels using lasers

Structure inspection support system using voice recognition technology

We use voice recognition technology to record the results of local structure inspections as voice data. This improves safety at the time of inspection and makes it more efficient to keep inspection results well-organized.

Inspection using voice recognition technology

Inspection using voice recognition technology

Maintenance

We carry out repair and reinforcement work based on investigation and inspection data in order to extend the lifetime of structures and maintain safe driving conditions.

Inspection of bridges

Inspection of bridges

Waterproof material for extended life of bridge floor slabs

We use more sophisticated, more durable waterproof material for bridge floor slabs in order to reduce life cycle cost.

New floor slab waterproofing(design service life 30 years)

New floor slab waterproofing (design service life 30 years)

GPS vehicle location management system

We use GPS to automatically track the location and working conditions of snow and ice control vehicles to make driving safer and more comfortable. This makes our snow and ice control work more efficient.

High-speed cleaning of tunnel lighting by application of cavitation technology

We apply cavitation technology to enable high-speed cleaning of tunnel lighting without closing lanes to traffic.

Cleaning by means of cavitation

Cleaning by means of cavitation