Have you ever heard within the Weed Killer train? Not many people have, yet it plays a crucial role in the upkeep and smooth running among the UK's railway infrastructure. Without this behind the scenes maintenance Britain's railways would without a doubt grind together with halt, and disrupt only the every- day travel of commuters, but also the transportation of merchandise and services across the gap and breadth of england. In spite of the ever-spiralling connected with the motor vehicle, the railway network is still crucially crucial in Britain. There can, however, still be 'natural' problems, like sudden climatic changes, that have the potential to bring the network to a standstill. Yes we've all no doubt complained about delayed journeys caused in what we regard as limp excuses like leaves using a track or frozen points, but these are real problems for the network, and real problems demand real solutions. So how do train companies face a lot these problem? How does Railtrack manage to the network functioning when nature doesn't do the achievements told?
Most people would suspect that could would be simple: use weed killer or de-icer and the problem will be sorted. Unfortunately it isn't that simple. Almost any live in environmentally-conscious age, where such practices are equally not acceptable: we quite correctly demand that the use of any herbicide or chemical compound solution has to be selective in order to protect the natural wildlife. How exactly do railway companies together with the problems whilst ensuring they adequately protect wild animals? They use the latest Total Drop Control (TDC) spray applicators along with cutting-edge GPS technology.
However, evidently this solution is actually effective, it I still not altogether totally risk-free. There even now other circumstances that they wish to be addressed. The traditional methods making use of a 'weed killer train' have worked effectively for some time time, but environmental concerns now suggest that the companies have to exercise alert when applying any not organic in the vicinity within the track and also the surrounding points. If they use too great a power of a chemical, the wildlife could suffer: certain weed killers have been scientifically recognized to kill species like the lesser spotted newt, which is protected by legal system. On the other hand, using too weak a power of weed killer will simply mean that the problem will re-occur. The good news is how the train companies are now able to rely on new technology to take care that they supply the correct power herbicide in ecologically-approved way which effectively avoids any risk of point source pollution.
The technology works doing this. The dispensing equipment is bound to the train itself and is controlled a new GPS sensor: the flow of mit spray is related to the incidence of the train and it is in turn monitored with speed sensing. Unfortunately as good as GPS technology is, it too has its limitations. Britain's railways have lots of tunnels additionally trees could affect the accuracy of gear. Therefore the train companies use Doppler radar technology to overcome this issues. Doppler non-contact radar speed sensors are already widely through UK rolling stock engineers, and are valued for their accuracy and their low cost. The new single beam and dual beam sensors provide accurate, independent speed and distance measurements in many railway periods. They are currently in utilization of both test tracks as well as the main beating. The latest application of Doppler radar technology has been refined to give accurate speed and distance data, totally free from the errors normally related to wheel slip, GPS blank areas or surface variations. Because the non-contact radar Doppler speed sensor device is outfitted independently from the train's wheels, it isn't affected by wheel slippage. These sensors also indicate the direction-of-travel, and both digital pulse and/or analogue voltage outputs.