The Department of Transportation (DOTr) is planning to spend ₱1.24 billion for the improvement of two regional airports aimed at upgrading capacity in response to increased demand for air travel.In separate notices on Tuesday, Aug. 11, the DOTr invited firms to participate in the bidding process for airport upgrades in Tacloban and Busuanga, which are pegged at a combined ₱1.24 billion.The DOTr has allocated ₱841.75 million, or roughly 68 percen…