What Does Sight Distance Dashboard Mean?
2 Answers
Sight distance refers to the maximum distance at which a driver, from the normal driving position during regular vehicle operation, can continuously see obstacles of a certain height on the road surface within the lane ahead, or traffic facilities and road markings in front of the vehicle. Below is an introduction to the relevant aspects of sight distance: Stopping Sight Distance: The shortest travel distance required for a vehicle moving at a certain speed, from the moment the driver sees an obstacle ahead until the vehicle comes to a safe stop before the obstacle. During stopping sight distance tests, the driver's eye height used for passenger cars is 1.2m, while for heavy trucks it is 2.0m, with the obstacle's top height on the road ahead being 0.10m. Meeting Sight Distance: On the same lane with oncoming traffic, to avoid a head-on collision, the shortest travel distance required from the moment a driver spots an oncoming vehicle until both vehicles safely stop after the driver takes reasonable deceleration measures, ensuring no collision occurs.
The range display on the dashboard typically refers to the function that shows the remaining driving distance on a car's instrument panel, such as how many more kilometers a fuel-powered vehicle can travel with its current fuel level, or the distance an electric vehicle can cover with its remaining battery charge. Based on sensor data and computer calculations, it dynamically updates according to current fuel consumption or road conditions, helping drivers plan refueling or charging stops in advance. This feature is particularly useful during long-distance driving to avoid the inconvenience of running out of fuel or power midway. I believe it's important to develop the habit of checking the dashboard; if the displayed numbers fluctuate significantly, it might indicate dust on the sensors, and a simple cleaning can restore accuracy. During vehicle maintenance, it’s also a good idea to check if the system is properly calibrated to ensure reliable operation. This feature is basic but essential, especially for those who frequently travel for work.
