Title:
TRAFFIC GUIDANCE SYSTEM AND TRAFFIC GUIDANCE METHOD
Document Type and Number:
Japanese Patent JP2023169677
Kind Code:
A
Abstract:
To accurately and efficiently detect the lane change performed due to roadwork, etc., of a vehicle approaching an alternating traffic section, to thereby perform appropriate traffic guidance.SOLUTION: When a vehicle C1 approaches an alternating traffic section while a traffic light 25A is green denoting an access permission state, an approaching vehicle detection sensor 29A detects this vehicle C1 and measures the speed v and distance x of the vehicle C1 (S1). When the vehicle C1 runs over the detection range of the approaching vehicle detection sensor 29A, a time T1 that is needed until the vehicle C1 passes through the approaching vehicle detection sensor 29A and a time T2 that is needed for passing through the alternating traffic section are calculated using the speed v and distance x and distance d of the alternating traffic section which are last measured (S2). The traffic light 25A is changed to red denoting a no-entry state after being kept lighted green until the T1 elapses (S3), and a traffic light 25B is changed to green after being kept lighted red until T1+T2 elapses (S4).SELECTED DRAWING: Figure 1
Inventors:
SATO SAWAKI
SHIKAKURA KATSUYUKI
SHIKAKURA KATSUYUKI
Application Number:
JP2022080945A
Publication Date:
November 30, 2023
Filing Date:
May 17, 2022
Export Citation:
Assignee:
SOGO KEIBI HOSHO KK
International Classes:
E01F9/00; G08G1/07; G01S13/58; G01S13/931
Attorney, Agent or Firm:
Shiro Nakatsuji