The MMDA should study how to plant trees correctly in order to avoid damage such as the above, and also to learn how to stake trees to fortify them against an upcoming storm TMT FILE PHOTO
The most likely explanation that can apply to most trees in public areas is that they did not undergo regular pruning. We typically do not touch large trees and prefer to let nature or the Department of Public Works and Highways (DPWH) have its way with them (a shame, the number of trees they cut in Bicol and Makiling this year, supposedly for the sake of “progress”).