Taximeter

A taximeter is a mechanical or electronic device installed in taxicabs and auto rickshaws that calculates and displays the fare based on a combination of distance traveled and waiting time. It is essential for ensuring transparent and fair pricing for passengers using these forms of transportation.

The core function of a taximeter is to accurately measure both the distance covered during a journey and the duration of any stationary periods, such as when a vehicle is stopped at traffic lights or waiting for a passenger. These measurements are then used in conjunction with a pre-programmed fare structure to compute the total cost of the ride. This fare structure typically includes a base fare (an initial charge), a per-distance rate (charge per kilometer or mile), and a per-time rate (charge per minute of waiting time).

Early taximeters were entirely mechanical, using gears and levers connected to the vehicle's wheel to measure distance. As technology advanced, electromechanical and then fully electronic taximeters were developed. Modern electronic taximeters offer increased accuracy, flexibility, and features such as digital displays, receipt printing, and integration with GPS and dispatch systems. They can also be easily reprogrammed to reflect changes in fare regulations.

Regulation and certification of taximeters are crucial to maintain accuracy and prevent fraud. Governments or regulatory bodies typically establish standards for taximeter performance and require periodic inspections and calibrations. Tampering with a taximeter is illegal and can result in fines, suspension of licenses, or other penalties.

The taximeter provides a standardized and auditable method for fare calculation, contributing to trust and accountability in the taxi and auto rickshaw industries.