Practice question

Which statement is true?

  1. On public roads where a speed limit is not indicated on traffic signs or pavement markings, the maximum speed for vehicles and mopeds (motorized bicycles) is 50 km/h.
  2. As a general rule, where there are two vehicular lanes, both of which are heading in the same direction, vehicles must proceed in the left vehicular lane.
  3. When exiting a parking lot located along a sidewalk, you must stop before crossing the sidewalk even is there is no pedestrian.
  4. When proceeding through an intersection without a traffic light, and the cross road is wider than the one you are driving on, you must slow down regardless of visibility.

Answer: B — As a general rule, where there are two vehicular lanes, both of which are heading in the same direction, vehicles must proceed in the left vehicular lane.

The situation tests lane discipline on a road with more than one lane heading the same direction. In left-side driving systems, the standard practice is to keep to the left lane when you’re not actively overtaking. The right lane is for passing slower traffic, and you should return to the left lane once you’ve finished overtaking. This keeps traffic moving smoothly and minimizes unnecessary weaving. That’s why the statement about proceeding in the left lane on a two-lane, same-direction road is the best choice. It reflects the proper use of lanes and helps prevent traffic from bottlenecking in the right lane. The other statements don’t fit this rule. The default speed limit isn’t universally 50 km/h; it varies by road type and area. Exiting a parking lot onto a sidewalk doesn’t require stopping before the sidewalk if there are no pedestrians present. At an intersection without a traffic light, the rule isn’t based on the relative width of the roads; you follow the standard right-of-way rules and slow down as needed to ensure safety.

Practice more: Japanese Provisional Learner's Permit (Karimen) Practice Test →