Taxicabs proliferated around the world in the early 20th century.

The first major innovation after the invention of the taximeter occurred in the late 1940s, when two-way radios first appeared in taxicabs.

Radios enabled taxicabs and dispatch offices to communicate and serve customers more efficiently than previous methods, such as using call boxes.

The next major innovation occurred in the 1980s, when computer assisted dispatching was introduced