Indonesia's first subway system has moved a step closer to launching later this month. People got the chance to take a test ride on the new project that many hope will ease Jakarta's notorious traffic problem.

The roughly 16-kilometer subway line connects 13 stations in the Indonesian capital. Officials developed the system with help from Japan, including a loan worth more than a billion dollars.

Over 4,000 people climbed aboard for the trial run that started Tuesday.

Jakarta is grappling with some of the world's worst traffic congestion. Officials hope the subway will help ease the problem and shorten travel times.

NHK