Section 4 Examples of accidents
  Case 1: Motor vehicle driver overlooking a moped running near the left edge of the road and concealed by trees

[Outline of the accident]

  Party A motor vehicle
  Party A had noticed a car coming from the far right, but had not recognized the presence (without using the traffic mirror) of a moped, hidden behind trees, running in front of that car when entering the intersection.

  Party B moped
  Party B, traveling at 50 km/h, had recognized the presence of a car 50 m ahead on the left, but continued forward, judging that "I can proceed first because that driver also recognizes my presence".

  Effect of traveling position
  As Party B was running on the extreme left side of the road, the moped was hidden by trees and Party A did not notice it.

  To avoid this type of accident:

  Party A motor vehicle
  Be sure to stop, look both ways with your own eyes, check in the traffic mirror if installed, and then check the right again.

  Party B moped
  Be sure to decelerate from the recognition point (i.e., 50 m from the collision point) in order to prepare for any unexpected movement of the other vehicle. Do not drive on the extreme left side of the road to ensure that the other party will not overlook you.

Accident diagram

Photo 1: Movement of Party B moped seen from Party A's motor vehicle

  Case 2: Both drivers overlooking each other's vehicle (1)

[Outline of the accident]

  Party A motor vehicle
  Party A could not see a moped on the right about to pass a minivan decelerating with a left-turn signal flashing when entering the intersection.

  Party B moped
  Party B passed the minivan in front, which moved to the left flashing a left-turn signal, with Party A hidden behind the minivan.

  To avoid this type of accident:

  Party A motor vehicle
  When passing a left-turning vehicle from the right, be sure to proceed slowly and check the right again for other vehicles. Do not rush. Take time to wait for the vehicle in front to turn left.

  Party B moped
  Imagine the road situation ahead of the left-turning vehicle in front, and be sure to pass slowly enough to avoid a collision, keeping in mind the possibility of a vehicle appearing from behind that vehicle. Keep a certain distance from the vehicle in front so that you will not be hidden behind it.

Fig. 8  Accident Diagram

  Case 3: Both drivers overlooking each other's vehicle (2)

[Outline of the accident]

  Party A motor vehicle
  At an intersection with a concrete fence on the right blocking the view, Party A, after stopping for a moment, entered the intersection to the point where the driver could see in both directions of the crossing road (without using the traffic mirror) when a moped proceeded into the intersection.

  Party B moped
  Party B was running near the left edge of the road as usual without paying attention near the intersection where approaching vehicles cannot be seen.

  Effect of traveling position
  As Party B was running near the left edge of the road, it was not easy for Party A to recognize its presence. Moreover, it was too late for both parties to avoid the collision even by hard braking when they recognized each other's presence.

  To avoid this type of accident:

  Party A motor vehicle
  Be sure to stop, look both ways with your own eyes, check in the traffic mirror if installed, and then check the right again while proceeding slowly.

  Party B moped
  Even if you have the right of way, be sure to decelerate or check for the presence of another vehicle using the traffic mirror at an intersection. Do not drive on the extreme left side of the road to ensure that a vehicle coming from the left will notice you.

Fig. 8  Accident Diagram

Photo 2: The intersection seen from Party A's motor vehicle

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Institute for Traffic Accident Research and Data Analysis (ITARDA)