Both roads are parallel to each other. This is a prime road for motorists as jeeps from Montalban, San Mateo, Parang and SSS Village all traverse this road to get to Bayan. It's basically a straight and flat road.
Ever wondered why they call those roads Paliparan ?
Well, during the Japanese occupation, this area used to be a Japanese airfield which planes used to land and take off, hence "Paliparan", which is Tagalog for "runway". This is also the reason why this multi-kilomter road is so straight.
So the next time you pass Paliparan, think of passing through a road that used to be a airplane runway.