The automotive industry in India is one of the largest in the world and one of the fastest growing globally. India's passenger car and commercial vehicle manufacturing industry is the seventh largest in the world, with an annual production of more than 3.7 million units in 2010.We every day mesh up with these vehicles give us headache .But this mesh up could be answer of new type power generation

ROAD POWER GENERATION {RGP} this is one of the most recent power generation concept. This device is engineered as a practical and useful alternative energy technology for generating clean electricity from the millions of vehicles on our roadways. Once fully optimized and installed, engineers anticipate that devices may be used to augment or replace conventional electrical supplies for powering roadway signs, street and building lights, storage systems for back-up and emergency power, and other electronics, appliances, and even devices used in homes and businesses.
This device converts the kinetic energy of the vehicles into electric energy. This is done by moving plate installed on the road, this plate take the stroke motion of the vehicles and convert it to the rotary motion by crank mechanism and it generates the electricity
To build a mechanism which convert friction by vehicles on the road into stroke motion and this stroke motion converted to rotary motion by one direction freewheel this rotate motor via pulley and will generate electricity
Basic material :-
1) Freewheel
2) Bicycle Rim
3) Helical spring
4) Pulley
5) Wooden frame
6) LDR
7) Op-amp
8) Relay

1)Bicycle Freewheel:-
This is a type of pulley having cone shaped metal merging out from the circumference of the pulley. Its rotation is restricted to rotate to one direction only. This is use because when driven pulley is stop then also it keeps rotating with having power from the driven

2)Bicycle Rim
The rim is commonly a metal extrusion that is butted into itself to form a hoop, though may also be a structure of carbon fiber composite, and was historically made of wood. Some wheels use both an aerodynamic carbon hoop bonded to
3)Helical Spring:-
A Coil spring, also known as a helical spring, is a mechanical device, which is typically used to store energy and subsequently release it, to absorb shock, or to maintain a force between contacting surfaces. They are made of an elastic material formed into the shape of a helix which returns to its natural length when unloaded.
A pulley is a wheel on an axle that is designed to support movement of a cable or belt along its circumference. Pulleys are used in a variety of ways to lift loads, apply forces, and to transmit power. A pulley is also called a sheave or drum and may have a groove between two flanges around its circumference. The drive element of a pulley system can be a rope, cable, belt, or chain that runs over the pulley inside the groove.


LDR is light dependent resistor. Its resistance varies according the intensity of light falling on it. It is made of CdS cells. They are also note as Photocells. Photocells are sensors that allow you to detect light. They are small, inexpensive, low-power, easy to use and don't wear out.

This device works on principle of friction and conversion of translator motion to rotary motion. There is sliding plate fixed on the road which is fixed by spring. It takes the stroke motion of the vehicles (slides the plate) and hit the freewheel (for unidirectional motion), this rotate the flywheel (mechanical capacitor) turn the generator via pulley arrangement and hence motive power generates. With the following block diagram we can easily understand the overall working of the automatic street light

Here the sensor LDR has the property to change its resistance according to the intensity of the light. As the intensity of light falling at the LDR increases, its resistance gets decreased and so on. Hence the total amount of light remains constant
1) The unit have minimum visual impact on their surrounding environment
2) An RPG emits no noise
3) The unit will have minimum cost of installation and maintenance
4) This unit could be located at the close proximity to service and poer grid
5) Possible answer for battery charging station
6) Completely isolated street light or traffic lights

Road Power Generation this is new type of unconventional source of energy. This is a type of vibration harvesting. This uses lost energy of vehicle and converts kinetic energy to electric energy.