Depends, if you're looking for the raw score then you have a continuous ordinal variable. If you have range of number of car accidents, then you have an interval variable.
ratio
discrete
Did you mean "variables and constant"? Variables vary taking on various values whereas constants do not change and remain fixed. Temperature, number of accidents per day in a city, number of children born in a city are examples of variables. Number of planets in our solar system is an example of a constant.
discrete
Riyadh
discrete
"Recently in NYC, in the past couple years their were 11,000 people injured while using escalators.To prevent these accidents, there are many safety rules though."
Most people think that accidents among senior drivers is due to them driving slow or health reasons. A study in Kansas city reported that seniors have more difficulty judging what other cars are going to do.
at intersections
City
discrete
I think accidentas occur in big cities rather than a small town. And it would affect the rate because not many people in big cities drive nor walk.The probability of accidents increases as the number of people and cars increases. So a big city would have more chances for accidents to happen.