TOP > Effects of 4 lanes
Effect of 4 lanes
Effect of 4 lanes on Joshin-Etsu Expressway ◆ Decrease in serious accidents
- Since the opening of the Joshin-Etsu Expressway 1999, there were 70 accidents that broke through the simple median strips (rubber poles, etc.) in the provisional 2-lane section and jumped into the opposite lane, including 13 fatal accidents. Has occurred. (As of the end of September 2018) As a protective fence will be installed in the median strip due to the four-lane structure, such serious accidents will be reduced.
Effect of 4 lanes on the Joshin-Etsu Expressway ◆ Relieving traffic congestion
- Congestion due to traffic concentration that has occurred in places where the slope of the road changes, lanes decrease, etc. will be reduced by changing to 4 lanes (increasing lanes).
Effect of 4 lanes on Joshin-Etsu Expressway ◆ Secure smooth traffic
- The number of road closures can be reduced because it is possible to perform traffic accident restoration work and road maintenance and repair work, which had previously been forced to work with road closures, by lane regulations.
- Over the past 10 years (FY19-H29), 55 events have occurred where large vehicles cannot climb the hill and block the lane due to snow, etc. This makes it possible to avoid vehicles that cannot climb uphill in such cases.
Effects of 4 lanes on the Joshin-Etsu Expressway ◆ Securing early traffic functions in the event of a disaster
- Since it is possible to carry out restoration work in parallel while securing a traffic zone, it will be possible to restore the road early and it will be possible to pass emergency vehicles and transport goods quickly.
