A look at the World Rush Hour

In this Sept. 10, 2014 photo, Irma Ortiz applies makeup while waiting in line at the Western Hemisphere's busiest border crossing in Tijuana, Mexico. An average of 50,000 cars and 25,000 pedestrians cross daily through the San Ysidro Port of Entry - many waiting for hours on their way to jobs, schools and shopping malls in the U.S. (AP Photo/Gregory Bull)

In this Sept. 17, 2014, photo, passengers look at the Sheikh Zayed highway towers from the front window of a remote control metro during afternoon rush hour in Dubai, United Arab Emirates. The 5-year-old Dubai metro has grown from serving 60,000 passengers daily in 2009 to 500,000 commuters. (AP Photo/Kamran Jebreili)

In this Sept. 15, 2014, photo, commuters get off a motorized boat during rush hour on a pier at the Saen Saeb canal in Bangkok, Thailand. (AP Photo/Sakchai Lalit)

In this Sept. 1, 2014, photo, North Korean commuters ride on a subway in Pyongyang, North Korea. Foreign visitors are usually only allowed to take one to two stops on Pyongyang's north-south Chollima subway line. (AP Photo/Wong Maye-E)

In this Sept. 10, 2014, photo, pedestrians cross the road in the Hong Kong shopping district of Mongkok during rush hour. On packed subways and crowded streets, billions of people worldwide participate in a short-distance population shift twice a day: the rhythmic ritual of the daily commute to and from work. (AP Photo/Kin Cheung)

In this Sept. 5, 2014, photo, commuters grasp the poles on a subway during the evening rush hour in Rome. On packed subways and crowded highways, billions of people participate in a short-distance worldwide population shift twice a day: the rhythmic ritual of the daily commute to and from work. (AP Photo/Alessandra Tarantino)

In this Sept. 18, 2014, photo, people cross the road in the high density suburbs of Mbare in Harare, Zimbabwe. (AP Photo/Tsvangirayi Mukwazhi)

In this Sept. 15, 2014, photo, passengers sit in a tram during a rush hour in Hong Kong. (AP Photo/Kin Cheung)

In this Sept. 17, 2014, photo, a man closes his eyes as he stands with other commuters in a crowded metro car during rush hour in Rio de Janeiro. On packed subways and crowded highways, billions of people worldwide participate in a short-distance population shift twice a day: the rhythmic ritual of the daily commute to and from work. (AP Photo/Leo Correa)

In this Wednesday, Sept. 17, 2014, photo, the headlights and taillights of moving cars streak past stationary cars waiting for their turn at an intersection during the evening rush hour in Sydney. (AP Photo/Rick Rycroft)

In this Sept. 4, 2014, photo, thousands of motor scooters wait at a stoplight during the morning commute in Taipei, Taiwan. There are 15.09 million motorcycles in Taiwan, or 67.6 for every 100 people according to statistics from Taiwan's 2013 official Directorate General of Budget, Accounting and Statistics (DGBAS). (AP Photo/Wally Santana)

In this Sept. 19, 2014, photo, morning commuters ride a water taxi up the Chicago River to Michigan Avenue in Chicago. (AP Photo/M. Spencer Green)

In this Sept. 22, 2014, photo, commuters rush into a train garage during a morning rush hour at a subway station in Beijing. (AP Photo/Andy Wong)