Mode of transport carries its own motor. As of 2002, there were 591 million automobiles worldwide. Other users of roads include motorcars, motorcycles, buses, trucks, bicycles and pedestrians, and special provisions are sometimes made for each of these. For example, the use of bus lanes give priority for public transport, and cycle lanes provide special areas of road for bicycles to use. Motorcars offer high flexibility, but are deemed with high energy and area use, and the main source of noise and air pollution in cities; buses allow for more efficient travel at the cost of reduced flexibility. Road transport by truck is
The Machine: Bride of Pin-Bot Wheel, which awards larger random prizes including lighting the center ramp (called the "Heartbeat Ramp") on a timed interval for a shot worth one billion points. (Scoring this shot at least once causes the player's score to be recorded in a special "Billionaire Club" high score list, separate from the main high score table.) Once her voice circuits are activated, The Machine provides spoken feedback to the player on his or her shots. The Machine's voice is provided by Chicago-based singer Stephanie Rogers. Due to the sexual overtones in some of her speech, the game includes a "modesty" setting that