According to a study by Waze, a traffic and navigation app, Jakarta is the world’s most congested city. The average driver in Jakarta spends more than 100 hours a year stuck in traffic, and the city’s notorious gridlock costs the economy more than $6 billion a year.
The root of the problem is Jakarta’s massive population density. The city has more than 10 million people crammed into just 662 square kilometers, making it the most crowded city in the world. …