A2B02: Committee on Rigid Pavement Design Chair: Kathleen T. Hall State of the Art and Practice in Rigid Pavement Design K ATHLEEN T. H ALL , Consultant Three types of concrete pavements are commonly used (1): ? Jointed plain concrete pavement (JPCP) has transverse joints spaced less than about 5 m apart and no reinforcing steel in the slab. JPCP may, however, contain steel dowel bars across trans