One World

Different factors that affect despatch saltations on the road s for fomites. ? Speed doctor is the maximum f number at which a fomite can travel in a certain ara. Usually they are indicated by signs next to the road. As you can see from the graph below, speed limits are extremely all important(p). If speed limits wouldnt be thither, a lot more accidents would resolve into death. Speed of the vehicle in miles/hourPercentage of chance of death 207 3044 4086 Those speed limits arent just chosen by people. Many things have to be considered while deciding about a speed limit. A lot of milieual and human factors affect those limits.Some of these are The weather Traffic The driver The vehicle The road condition The type of environment The weather can affect a lot of things that then affect speed limits. This we can notice by the temporarily change in speed limits when there are bad weather circumstances. For example when it is raining very heavily or there is snow, speed limits pul l up stakes be changed until it stops raining or the snow melts. These changes are usually indicated by electrical signs on the road. Even when it is not indicated, drivers should be responsible enough to slow down in these circumstances.The traffic is also a very important factor. In areas where there is a lot of traffic, the speed limits will generally be facility lower. Since in these areas a lot of cars come together at the same time accidents can easily happen. Those areas with a lot of traffic are usually where there are traffic lights or pedestrian crossings. The speed limit will be indicated by a road sign. The driver is one of the most important factors. The bad thing about this factor is that the driver is very un prognosticateable and the drivers behavior is different all the time.Speed limits can obviously not be set concord to every drivers mood so generally they give ear at the other factors weather, traffic, vehicle, road condition and type of environment to predic t the drivers behavior. Generally drivers will tend to drive fast when there isnt a lot of traffic and when there are no obstacles. This can be very dangerous as unexpected things can happen. In these areas the speed limit could be decreased based on that. The vehicle and the state of the vehicle are also very important when setting speed limits.Obviously the speed limit cant be set according to every individual vehicle so usually the speed limit is chosen in a way which is not too fast so that the older vehicles can keep up and not too slow so the people with faster vehicles wont get annoyed. They also look at the type of area in which the speed limit has to be set. If its in a country area with farms, they will take in consideration that also tractors will be driving there and animals can be around. The road condition has to be very good in effectuate to be able to drive on it in the first place.In sandy roads or areas where a lot of mud may occur, the speed limits will be set lo wer so that the vehicle has a lower chance of slipping. Bumps in the road will also cause the speed limit to be lower than in straight areas. Thats also the reason why speed bumps are used. They make people drive slower as they can damage their vehicle in case they dont. The type of environment has to do with the people that live around but also the buildings that are close or nature around the roads. In urbanized areas where a lot of people live, the speed limit will be set kind of low to cause as less danger for pedestrians as possible.Then, talking about buildings in the surrounding area, if there is a mall or a school they will have to take in consideration that children or families with children will be walking around there and crossing the streets. Therefore the speed limits will be adjusted so that even if there is a collision the chance of death wont be very high. In some cases, very polluted environments can cause the speed limit to be set lower but in some cases even high er. This is because the contamination of a car is lower when it either drives at a very low speed or quite a high speed as shown in the graph below.As the speed increases you can see that the fire consumption and therefore also the pollution increases. But when you reach a certain speed, that fuel consumption will start decreasing again. So for the least amount of pollution you should driver very slow or faster than about 60 miles per hour. Bibliography onlinemanuals. txdot. gov/ /factors_affecting_safe_speed. htm www. ibiblio. org/rdu/sl-irrel. html www. transport. qld. gov. au Safety Road Speeding www. wellington. govt. nz/projects/new/ /lowerspeed-facts. pdf www. conference. noehumanist. org/ /Proceedings-HUMANIST-S6. 6. pd