In 2004, women's life expectancy exceeded men's life expectancy by 5.2 years, the smallest gender gap in life expectancy since 1946. Life expectancy for whites was five years greater than that of blacks. Life expectancy for black and white men and women was as follows: 1  Black male: 69.8 years.  White male: 75.7 years.
But, that's not always the case. Safe following distances vary according to traffic speed and weather conditions and according to the type of vehicle you're driving. In good conditions, you should allow 2 seconds between your car and the vehicle in front of you. Here's an easy way to work that out.
Next time you are driving in heavy traffic during peak hour remember that there are just 23 Australians per kilometre of road in this country compared with: Given the large distance required to perceive and react to hazards plus the braking distance require to stop a car in an emergency. Maintaining a safe following distance is an essential low risk driving technique.The greater the following distance you have from the vehicle in front the more time and space you will have to manoeuvre in.