doe eia m072 99 model documentation report transportation sector module of the world energy projection system july 1999 office integrated analysis and forecasting information administration us department washington dc weps ii iii table contents 1 introduction purpose this summary archival media contact organization 2 3 objectives interaction with other modules rationale 5 analytical approach overview regional detail 6 modal modeling 9 fundamental assumptions 10 4 road 11 number vehicles calculating 12 motorization in industrialized countries developing 13 levels 14 option 15 vehicle intensity 16 18 20 by fuel 21 transport modes 22 air rail inland water international pipeline 23 appendix a bibliography 24 b abstract 26 name acronym