Single use plastic bottles has become the most visible and persistent environmental problems in urban areas. Many cities struggle with collecting and processing these bottles because they occupy large volumes in waste bins and transportation trucks. This project proposes innovative mechanical infrastructure solution that combines traffic speed breaker with passive plastic bottle crushing system. The device uses weight of passing vehicles to compress plastic bottles without requiring electricity, motors or external power sources.

The proposed system is installed across roadway in similar manner to conventional speed bump consisting reinforced upper crushing plate connected to hinge mechanism on one side and supported by return spring system. Beneath the plate lies closed loop structural frame containing crushing chamber and rotating roller that guides crushed bottles toward secondary collection bin. The entire structure is embedded in the road surface and designed to withstand repeated vehicle loads.

The operation of the system is simple and automatic. Plastic bottles are deposited by users into intake bin located at one side of the structure. From the bin bottles move into horizontal crushing channel positioned beneath the hinged upper plate. When vehicle drives over the speed breaker the wheel applies downward force to the plate. This force causes the plate to pivot around the hinge compressing the bottles against the lower crushing surface. The compression flattens the bottles and significantly reduces their volume.

During the crushing process the bottles come into contact with a cylindrical roller located within the chamber. Due to the shear force created by the downward motion of the plate and the movement of the bottle material the roller rotates. This rotating action helps guide the crushed bottles toward the opposite side of the system. The crushed bottles are then collected in second storage bin where they can later be removed for recycling.

After the vehicle passes over the device the return springs expand and lift the crushing plate back to its original position. This resets the mechanism and prepares it for the next cycle of operation. Because the system relies solely on the mechanical energy generated by vehicle weight it can operate continuously without electricity, sensors or electronic components. This makes the design especially suitable for areas with limited infrastructure or unreliable power supply.

An additional feature of the design is its ability to discourage wrong direction traffic. The speed breaker structure can be shaped asymmetrically so that it provides smooth passage for vehicles traveling in the correct direction while creating resistance for vehicles attempting to drive in the opposite direction. This adds a traffic control benefit alongside its environmental function.

By compressing plastic bottles at point of disposal the system significantly reduces volume of collected waste allowing more bottles to be stored and transported efficiently. This lower waste collection costs, reduce landfill usage and encourage recycling practices in busy public areas such as parking lots, shopping centers, campuses and roadways.

This design represents sustainable, low maintenance and energy free solution for managing plastic bottle waste while serving as traffic calming device.

https://hackaday.io/project/205111-plastic-bottle-crashing-speed-breaker