Pilot Controlled Lighting (PCL), also known as Aircraft Radio Control of Aerodrome Lighting (ARCAL) or Pilot Activated Lighting (PAL), is a system which allows aircraft pilots to control the lighting of an airport or airfield's approach lights, runway edge lights, and taxiways via radio. At some airfields, the aerodrome beacon may also be ARCAL controlled. ARCAL is most common Anton or little-used airfields where it is neither economical to light the runways all night, nor to provide staff to turn the runway lighting on and off. It enables pilots to control the lighting only when required, saving electricity and reducing light pollution. The ARCAL frequency for most aerodromes is usually the same as the UNICOM/CTAF frequency, although in some rare cases, a second ARCAL frequency may be designated to control the lighting for a second runway separately (an example of this is runway 01/19 at the airport in Sydney, NS). To activate the lights, the pilot clicks the radio transmit switch on the ARCAL frequency a certain number of times within a specified number of seconds. There are two type of ARCAL systems, type J and type K. When either type of system is activated, a 15-minute countdown starts, after which the lights turn off. While the lights are on, whenever a lighting command is issued, whether it changes the lighting intensity or not, the 15-minute countdown is reset. At some airfields, the lights may flash once to warn pilots that the lights are about to go off, before turning off two minutes later.When using ARCAL, it is strongly recommended that aircraft on final approach to the airfield issue a fresh lighting command, even if the lights are already on (especially if the lights were activated by another aircraft). This is so that the lighting does not turn off at a critical moment (such as when crossing the runway threshold).
• The purpose of the project was to design and build a system that can turn of and turn on relays of light while the Airplane approaches and leaves the runway. The lights will be turning on and off on the movement of airplane. Hence when no airplane is there lights will be off only.
• This will be based on RF (radio frequency) and through turn on the relay of lights on runway. As soon as the light is gone it will turn off the relay of light at the runways.

ATMS involved a trial run of the fully automated Traffic Regulatory Management System (TRMS), Involving usage of surveillance cameras in the city of Chennai. This project involved installing sophisticated cameras, wireless towers and poles, under the Rs. 3-crore-State government funded project. Automatic Number Plate Reader (ANPR) cameras were installed in 28 out of 42 vantage points in the city, while „Pan Tilt Zoom‟ (PTZ) cameras were deployed in 10 out of 12 busy junctions identified. The traffic police also plan to install 40 CCTV cameras at various junctions. This is to warn motorists who blatantly violate rules and monitor traffic on arterial roads during peak hours. This integrates various sub-systems (such as CCTV, vehicle detection, communications, variable message systems, etc.) into a coherent single interface that provides real time data on traffic status and predicts traffic conditions for more efficient planning and operations. Dynamic traffic control systems, freeway operations management systems, incident response systems etc. respond in real time to changing conditions.

Main features of the project are it, not only display the called number but also speaks out the number.In case of any security threat to the cashier, a panic foot switch can be connected on a suitable place omany such switches can be installed, press the switch to dial the nearest police station number to inform about the emergency situation in the bank.

Automatic car lighting system is a simple yet powerful concept, which uses a transistor as a switch.By using this system manual works are 100% removed. It automatically switches on the lights when the sunlight goes below the visible region of our eyes. This is done by a sensor called Light Dependent Resistor (LDR) which senses the light actually like our eyes. It automatically switches off the lights, whenever the sunlight comes, visible to our eyes.

The ATIS information is relayed by a recorded voice and is important in an airport’s/Bus Terminal /Harbor everyday operation, like when there are multiple landing strips receiving traffic because of upcoming landings and even operational information. Here is several ATIS information that is important to the pilot/driver:
 Arrival and departure indicator
 Time of weather observation
 Visibility
 Air Temperature
 Altimeter Settings
 Wind direction and speed
 Runways in use/ not it use
 Type of approaches expected
 Surface conditions
 Other essential operation information
Drivers use this information whenever they can to ensure the safety of the flight; they even listen again and again especially when there are changes in air traffic. The objective is to inform road-users of latest traffic updates and better management of traffic. Technologies that are employed are:-
SMS, internet and radio have been employed for updates
The update protocols in a few Indian cities are as follows
(a)Internet facility @ Chennai and Hyderabad
This project provides a platform for the public to check the real time traffic situation at important junctions and arterial roads, through the net.
(b) SMS facility @ Chennai
SMS will be sent during morning and evening peak hours to the subscribers, indicating congestion points and bottle necks. b. Chennai
(c) FM radios facility @ Kolkata
Traffic updates are being provided on FM radio to convey critical information such as obstruction and road damage due to rain.