20 kph driving By Gregorio C. Bueno - February 21, 2014 7:57 am Mindanawons who are complaining of the 30-40-60 kph speed limits in Davao City may want to try the highway of Ipil in Zamboanga Sibugay. MindaNews photo by Gregorio Bueno Share this:TwitterFacebookLike this:Like Loading...Comments comments