Traffic congestion mitigation effect by providing traffic congestion prediction information

1) Congestion mitigation effect by providing congestion prediction information

• Despite the 4.6% increase in daily traffic on Expressway in our area, traffic congestion on the In-bound line was dispersed from Thursday, May 4 to Saturday, May 6, resulting in long traffic congestion of 30 km or more in the previous year. It's halved compared to sync. Also, the amount of traffic that indicates the size of traffic ^*1 About 30% decreased.
• In-bound As a cause of the decrease in the congestion of the line, this year's weekday arrangement was easy to take consecutive holidays from 3rd (Wednesday) to 7th (Sunday). It is also possible that there were many customers who used Expressway on 6th (Saturday) when traffic congestion was low, avoiding the peak 4th (Thursday) to 5th (Friday).
• Expressway In a questionnaire about traffic jam prediction information conducted on the information site "DoraNavi", about 40% of the customers answered "Avoid traffic jam by traffic jam prediction information".

*1: "Congestion amount" is an index that indicates the size of congestion (congestion length x congestion time)

Number of traffic jams of 30 km or more on one In-bound line

The number of traffic jams over 30km on the In-bound lines in the service area was halved from the previous year.

• Number of traffic jams over 30km
  In-service total) H17: 4 times ⇒ H18: 2 times (▲50%)
  Tohoku Expressway) H17: 3 times ⇒ H18: 1 time (▲67%)
  Kan-Etsu Expressway) H17: 1 time ⇒ H18: 1 time (± 0%)
• Maximum traffic length
  Tohoku Expressway) H17: 37.8km ⇒ H18: 32.6km (▲14%)
  Kan-Etsu Expressway) H17: 47.3km ⇒ H18: 31.4km (-34%)

2 In-bound traffic volume (for traffic over 10km)

Congestion volume of 10 km or more in the In-bound line in the area was reduced by about 26% from the previous year.

• Congestion volume of 10 km or more
  Last year: 1.9 thousand km・hr ⇒ This year: 1.4 thousand km・hr (▲26%)

*H17GW is the same year as the previous year, and H12GW is the same year as this year.

Traffic congestion forecast information is utilized by many customers [PDF: 135KB]