Catch Me Who Can and mining engineer Richard Trevithick was the primary developer of the steam locomotive. He wanted to present his new invention to the general public, and he looked for a suitable site to demonstrate his invention. He chose Bloomsbury, directly south of the Euston Road, near London's Euston Square. The site is believed to be under University College London’s Chadwick Building, which now houses the Centre for Transport Studies. A circular track in diameter was built, on which a locomotive and a small number of carriages would run. Members of the public could view and ride on this train for a
Catch Me Who Can fare of 1 shilling. Trevithick hoped this would be a commercial venture, as well as creating publicity and hopefully demand for more locomotives. Trevithick's fourth railway locomotive was built new for the Steam Circus. It was named "Catch Me Who Can" by the sister of Davies Gilbert. This new locomotive differed from the previous locomotive designs: instead of a horizontal cylinder, flywheel, and geared drive, Catch Me Who Can used a vertical cylinder encased in the boiler, driving one pair of wheels directly. The cylinder was in diameter, with a stroke. The boiler was Trevithick's return-flue type, complete with an