Padalarang
To the West of Bandung, there is a small town called Padalarang. Despite its size, the town has a significance of being a junction city, where the railway line from Bandung separate.
One of the line goes to North West, where it eventually joined the North Coast line at Cikampek. Whereas the other goes to West where it goes to Cianjur, Sukabumi, Bogor and eventually rejoined the previous line in Jakarta.
The later line is a twisty and difficult line to pass: it has several sharp curves which prevent six axle locomotives to pass through. It also has the steepest (non rack) ralway line in Indonesia (1 in 25 metres), which is why the railway line is never been favorable by Imperial Dutch and Indonesian state railway.
And to compund the problem, the tunnel on the line had recently been collapsed and, at the time of writing, remain in collapsed condition.
Whereas the other railway line is the busiest railway line. It sees almost 20 trains every day, most of them are first class train, and it also has the highest railway bridge in Indonesia.
And when the President of Indonesia came to Bandung he/she would usually arrived by train, through this line.