Fastball Fastball The fastball is the most common type of pitch thrown by pitchers in baseball and softball. "Power pitchers," such as former American major leaguers Nolan Ryan and Roger Clemens, rely on speed to prevent the ball from being hit, and have thrown fastballs at speeds of (officially) and up to (unofficially). Pitchers who throw more slowly can put movement on the ball, or throw it on the outside of home plate where batters can't easily reach it. The appearance of a faster pitch can sometimes be achieved by minimizing the batter's vision of the ball before its release. The
Passengers per hour per direction Passengers per hour per direction Passengers per hour per direction or passengers per hour in peak direction (pphpd or p/h/d) is a measure of the capacity of a rapid transit or public transport system. Many public transport systems handle a high directional flow of passengers— often traveling to work in a city in the morning rush hour and away from the said city in the late afternoon. To increase the passenger throughput, many systems can be reconfigured to change the direction of the optimized flow. A common example is a railway or metro station with more than two parallel escalators,