Here is a nice article about induced demand, which is simply the additional traffic you get on top of the current and estimated traffic from “normal” growth based on the current transportation system and infrastructure once you introduce additional services and/or infrastructure. That is, there is additional trips/traffic generated for when you widen roads or construct a new transit system.
VannPashak, J. (2018) “More roads, same congestion,” http://www.medium.com, https://medium.com/@jvannpashak/more-roads-same-congestion-b2b437ecaa94 [Last accessed: 11/22/2018]
I think the more interesting part of the article is its mention of the work of Redmond and Mokhtarian, which the author provides in a link. Clicking this link brings you to a wealth of articles attributed to the two that are definitely worth reading especially for people seeking understanding for issues related to commuting. Many of the researches and the methodologies in the articles may be replicated for application in the Philippines, and should be taken on as research topics in what can be inter-disciplinary programs or projects.