Environmental conservation initiatives

We are promoting various environmental conservation efforts

Uses lighting that saves energy and has excellent visibility

By changing the lighting in the tunnel from the conventional "high pressure sodium lamp" to "LED lamp", we are improving visibility and contributing to energy saving. In fiscal 2018, we changed to LED lamps at 29 new tunnels. It is estimated that the annual reduction in power consumption by changing to LED lamps will be about 35 million kwh (about 19 thousand tons of CO2 reduction per year).

We are also working to further reduce power consumption by introducing LEDs for road lighting as well as tunnel lighting.

Image of high pressure sodium lamp and LED tunnel lighting

Promotion of eco-friendly "eco Inter®" and "eco Area®"

IC and SA / PA are based on the active introduction of energy-saving electrical equipment, and measures to improve the efficiency of heating and cooling in buildings and the development of "environmentally friendly" facilities that utilize renewable energy such as solar power generation Is proceeding.

Example of eco-inter®
Image of eco inter® example

Reduction of impact on roadside living environment

In order to reduce the impact on the roadside environment, we are taking measures such as installing noise insulation walls to prevent noise and developing environmental facility zones.In FY2018, we installed about 15 km of sound insulation walls with a total extension of about 1,080. It has become km.

In order to reduce the impact on the roadside environment, we are taking measures such as noise control by installing sound insulation walls and maintenance of environmental facility zones. It has become km. Photo of

Forest formation that contributes to the prevention of global warming

Expressway By the year 2018, we have planted trees on an area of about 3,700 ha. CO from these trees 2 The absorption and fixation effect of is estimated to be about 39,000 tons per year.

NEXCO EAST properly manages the green infrastructure including these forests.

Image image of initial planting status and aged green space management status

Challenge for new green recycling (“biomass gas power generation”)

As a new green recycling system for cutting grass, pruned branches of trees, and thinned wood, we are operating a biomass gas power generation system that uses the gas generated by thermal decomposition as energy to supply power to the service area.
(Tohoku Expressway Nasu Kogen SA (In-bound line))

Photograph of biomass gas power generation system (Tohoku Expressway Nasu Kogen SA (In-bound line))

As a new green recycling system for cutting grass, pruned branches of trees, thinning materials, etc., we operate a biomass gas power generation system that uses gas generated by thermal decomposition as energy to supply electricity to service areas. Image image of