Indonesia, particularly its capital Jakarta, is notorious for severe traffic congestion. To address this issue, policymakers debate between two solutions: implementing a subway system or expanding roads. While both options have advantages, investing in a subway system is a more sustainable and effective long-term solution.
Expanding roads may seem like a straightforward approach. Wider roads could accommodate more vehicles, reducing immediate congestion. Additionally, road construction is often quicker and cheaper than building an underground rail system. However, road expansion has significant drawbacks. More roads encourage more cars, leading to a phenomenon known as induced demand, where congestion eventually returns. Moreover, land acquisition for road expansion can be expensive and disruptive, particularly in densely populated areas.
On the other hand, a subway system offers numerous long-term benefits. Subways provide a high-capacity, efficient mode of transportation that is not affected by surface traffic. They can significantly reduce the number of private vehicles on the road, decreasing congestion and air pollution. While the initial investment for a subway system is high, its long-term economic benefits outweigh the costs. Countries like Japan and South Korea have demonstrated how well-developed subway systems enhance urban mobility and productivity.
In conclusion, while expanding roads may offer short-term relief, it is not a sustainable solution. A subway system provides a more efficient, environmentally friendly, and long-term answer to Indonesia’s traffic problems. Therefore, Indonesia should prioritize investing in a subway network to create a modern and sustainable urban transportation system.