UJI COBA MODEL FISIK SISTEM BRIDGE WEIGH IN MOTION SEDERHANA PADA JEMBATAN GELAGAR BAJA KOMPOSIT (TRIAL MODEL OF A SIMPLE BRIDGE WEIGH IN MOTION SYSTEM ON STEEL GIRDER COMPOSITE BRIDGE) - Nugraha, Widi (Pusat Penelitian dan Pengembangan Jalan dan Jembatan, 2018)