Sirens And Lights - Why Emergency Vehicles Cannot Do Without Them

By Author: Sunil Punjabi
Total Articles: 2565
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Sirens and lights are an integral part of emergency vehicles. Emergency vehicles could be of many different types. There are cop cars and highway patrol cars which deal with law enforcement to a great extent. There are medical ambulances that are rushing to provide medical care to someone in a critical condition. There are fire engines and volunteer fire fighter vehicles which are speeding towards the site of a crisis. There are other vehicles that will need emergency lighting too such as tow trucks and construction crew and heavy equipment carriers. Each of these vehicles needs to attract the attention of motorists on the road, ahead of them as well as following them. That is where high performance emergency siren and lighting equipment proves to be critical.

Sirens and lights used by emergency vehicles need to provide certain performance aspects in order to contribute at the time of emergency. There are certain similarities in their design too, which makes things simpler. For example, Scan Lock mechanisms are used to select the ideal flash pattern or sequence for a situation and then lock it. Similarly, ...
... you can scan the available siren tones and then pick the one that addresses the situation perfectly. This makes operation easier, especially when you can pick and choose from amongst several different siren tones and flash patterns. In some cases, there is non-volatile memory available as well, which stores information about the last used siren tone or flash pattern.

The equipment that provides emergency lighting as well as siren tones offers good mounting options too. Emergency vehicles often benefit from the fact that these emergency lighting and sound equipment can be placed at adjustable height and angle depending upon the general direction in which the alerting signal should go. Mounting brackets and mounting clamps are often used. In some cases, the mounting accessories are actually customised for different kinds of vehicles. Emergency vehicles will also benefit from other design aspects such as modularity which allows the equipment to be easily repaired and individual components to be easily replaced by just removing a couple of screws. Sirens and lights comprise of several parts and it is simple enough to install or dismantle them based on the need.

An interesting observation about sirens and lights is about the quality of their construction. The equipment usually made of thermally efficient plastic, aluminium, fibre glass filled nylon or polycarbonate is designed to resist heavy duty handling. The siren and lighting equipment is also good enough to resist bad weather conditions and excessive vibration often experienced by surface mount equipment in speeding vehicles. The equipment should also provide multi-functional versatility. For example, modern sirens come with hands-free and radio announcement features, along with a public address system. The emergency lighting equipment has an array of intensity and flash pattern modes for different scenarios and different kinds of warning signals. All in all, lights and sirens greatly empower the crew of an emergency vehicle when they want to send out a clear signal to others on the road.

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