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What is following distance? Following distance is the space between your vehicle and the vehicle in front of you while driving. It's important for all drivers to maintain a safe following distance, so that they have time to safely stop in case the vehicle in front of them brakes abruptly.
You should probably not be following one in the first place.
the total mass of the vehicle and the load it contains
Vehicle Identification Number - The unique Vehicle Identification Number that is assigned to each vehicle. Think of it as a Social Security Number for transportation. It contains numbers and letters that are particular to a vehicle and only that vehicle.
You can buy a commercial motor vehicle on the following website: http://www.nissanofelkgrove.com/nv.htm?gclid=CIyUzKv046oCFQwaQgodNEHi5w. It is a great vehicle.
Rule of thumb, 1 car length every 10 mph
The chassis contains all the components of the vehicle - it is, in essence, the skeleton/frame of the vehicle to which the engine, transmission, suspension and body are connected.
Tailgating
When following a vehicle in front of you.
Medical Evaluation
3 seconds
At minimum 3 seconds. If the road conditions are adverse, it should be 5 seconds or more.