An implementation of the International Freight Simultaneous Transportation Equilibrium Model (IFSTEM) that developed in United Nations Economic and Social Commission for Western Asia (ESCWA), to the goods trade through the ports and lands of Sultanate of Oman is presented. Although some socio-economic variables, which are not available, were required for IFSTEM model calibration, some reasonable assumptions were made and it was good enough to draw the following main findings: the proposed alternative enhancement scenarios were 4 nested scenarios, i.e., each scenario included the previous one plus an additional enhancement. Scenario 1 involved reducing the number of documents from 8 to 4, and scenario 2 involved scenarios 1 plus reducing the time for port and terminal handling to 1 day (instead of 2 days for imports and 3 days for exports as estimated for 2012 by the World Bank trading across borders report 2013). Scenario 3 involved scenarios 1 and 2 plus reducing the international maritime transport times and costs by 20% (i.e., to become equal to that of the United Arab Emirate (UAE) according to the application assumptions), and scenario 4 involved scenarios 1 and 2 plus reducing the international maritime transport times and costs by 40% (i.e., to become 20% less than that of UAE according to the application assumptions). These 4 enhancement scenarios were analyzed against and compared with scenario (0), i.e., the reference “Do nothing” scenario.The prediction results revealed that the estimated international trade flows (imports, exports and re-exports) for Oman for scenarios 4 would increase by more than 504% by 2040 ( i.e., around 187 million tons) compared to the present situation of the base year 2012 (i.e., around 37 million tons). This increase would represent around 70% compared to the “do nothing” reference scenario by the year 2040 (i.e., around 110 million tons) assuming that the average increase of international trade flows in the “do nothing” case would be around 4% annually during the analysis period from 2012 to 2040. The predictions of average total trip time and total cost per ton revealed an estimated decrease for scenario 4 compared to the reference scenario by around 25% and 20% respectively. These results are internally consistent and represented reasonably significant improvements compared to the “Do nothing” reference scenario.
Safwat, K.N.A. and Walton, C.M. (1988) Computational Experience with and Application of a Simultaneous Transportation Equilibrium Model to Urban Travel in Austin, Texas: Computational Results. Transportation Research B, 22B, 457-467.
Safwat, K.N.A. and Hasan, M.K. (1989) Computational Experience with Simultaneous Transportation Equilibrium Model under Varying Parameters. Transportation Research Record 1251, TRB, National Research Council, Washington DC, 17-23.
Safwat, K.N.A. (1987) Application of Simultaneous Transportation Equilibrium Model to Intercity Passenger Travel in Egypt. Transportation Research Record 1120, TRB, National Research Council, Washington DC, 52-59.
Safwat, K.N.A. (1987) Computational Experience with Application of Simultaneous Transportation Equilibrium Model to Intercity Passenger Travel in Egypt. Transportation Research Record 1120, TRB, National Research Council, Washington DC, 60-67.
Safwat, K.N.A. and Magnanti, T.L. (1988) A Combined Trip Generation, Trip Distribution, Modal Split and Traffic Assignment Model. Transportation Science, 22, 14-30. https://doi.org/10.1287/trsc.22.1.14
Hasan, M.K. (1991) Comparative Analysis of Alterative Simultaneous Transportation Network Equilibrium Models. Ph.D. Dissertation, Texas A&M University, College Station, TX.
Hasan, M.K. and Al-Gadhi, S.A. (1998) Comparison of Simultaneous and Sequential Transportation Network Equilibrium Models, Application to Riyadh, Saudi Arabia, Transportation Research Record, 1645, 127-132. https://doi.org/10.3141/1645-16
Hasan, M.K. and Safwat, K.N.A. (2000) Comparison of Two Transportation Network Equilibrium Modeling Approaches. Journal of Transportation Engineering, 126, 35-40. https://doi.org/10.1061/(ASCE)0733-947X(2000)126:1(35)
Florian, M. (1984) An Introduction to Network Models Used in Transportation Planning. In: Florian, M., Ed., Transportation Planning Models, North Holland, Amsterdam, 137-152.
Florian, M. (1986) Nonlinear Cost Network Models in Transportation Analysis. In: Gallo, G. and Sandi, C., Eds., Netflow at Pisa. Mathematical Programming Studies, Vol. 26. Springer, Berlin, Heidelberg, 167-196. https://doi.org/10.1007/BFb0121092
Samuelson, P.A. (1952) Spatial Price Equilibrium and Linear Programming. Amer. Econ. Rev, 42, 283-303.
Takayama, T. and Judge, G.G. (1964) Equilibrium among Spatially Separated Markets: A Reformulation. Econometrica, 32, 510-524. https://doi.org/10.2307/1910175
Importers
Integrated Transport Network
Integrated Transport System
International Freight Transport
Takayama, T. and Judge, G.G. (1970) Alternative Spatial Price Equilibrium Models. J. Region. Sci, 10, 1-12.
Florian, M. and Los, M. (1982) A New Look at Static Price Equilibrium Models. Regional Science and Urban Economics, 12, 579-597. https://doi.org/10.1016/0166-0462(82)90008-4
Friesz, T.L., Tobin, R.L. and Harker, P.T. (1983) Predictive Intercity Freight Network Models: The State of the Art. Transportation Research Part A: General, 17, 409-417. https://doi.org/10.1016/0191-2607(83)90161-9
Roberts, P.O. (1976) Transport Planning: Models for Developing Countries. Unpublished Ph.D. Dissertation, Northwestern University, Evanston, IL.
Kresge, D.T. and Roberts, P.O. (1971) Systems Analysis and Simulation Models. In: Meyer, J.D., Ed., Techniques of Transport Planning, The Brookings Institute, Washington DC.
McGinnis, L.F., Sharp, G.P. and Yu, D.H.C. (1981) Procedures for Multi-State, Multi-Mode Analysis: Vol. IV, Transportation Modeling and Analysis, U.S. D.O.T. Report No. DOT-OST-80050-17/V.N.
Jones, P.S. and Sharp, G.P. (1979) Multi-Mode Intercity Freight Transportation Planning for Underdeveloped Regions. Proceedings of the 20th Annual Meeting, Transportation Research Forum.
Sharp, G.P. (1979) A Multi-Commodity Intermodal Transportation Model. Proceedings of the 20th Annual Meeting, Transportation Research Forum.
Friesz, T.L., Viton, P.A. and Tobin, R.L. (1985) Economic and Computational Aspects of Freight Network Equilibrium Models: A Synthesis. Journal of Regional Science, 25, 29-49. https://doi.org/10.1111/j.1467-9787.1985.tb00292.x
Friesz, T.L. and Harker, P.T. (1985) Freight Network Equilibrium: A Review of the State of the Art. In: Daughety, A.F., Ed., Analytical Studies in Transport Economics, Chap. 7, Cambridge University Press, Cambridge.
Friesz, T.L., Gottfried, J.A. and Morlok, E.K. (1986) A Sequential Shipper-Carrier Network Model for Predicting Freight Flows. Transportation Science, 20, 80-91. https://doi.org/10.1287/trsc.20.2.80
Harker, P.T. and Friesz, T.L. (1986) Prediction of Intercity Freight Flows, I: Theory. Transportation Research Part B: Methodological, 20, 139-153. https://doi.org/10.1016/0191-2615(86)90004-4
Harker, P.T. and Friesz, T.L. (1986) Prediction of Intercity Freight Flows II: Mathematical Formulations. Transportation Research Part B: Methodological, 20, 155-174. https://doi.org/10.1016/0191-2615(86)90005-6
Guelat, A., Florian, M. and Crainic, T.G. (1990) A Multimode Multiproduct Network Assignment Model for Strategic Planning of Freight Flows. Transportation Science, 24, 25-39. https://doi.org/10.1287/trsc.24.1.25
Safwat, K.N.A. (1982) The Simultaneous Prediction of Equilibrium on Large-Scale Networks: A Unified Consistent Methodology for Transportation Planning. Ph.D. Dissertation, Massachusetts Institute of Technology, Cambridge, MA.
Moavenzadeh, F., Markow, M., Brademeyer, B. and Safwat, K.N.A. (1983) A Methodology for Intercity Transportation Planning in Egypt. Transportation Research Part A: General, 17, 481-491. https://doi.org/10.1016/0191-2607(83)90168-1
(1986) Updating and Application of the Intercity Transportation Model. Final Report, CU/MIT Technology Adaptation Program, Development Research and Technological Planning Center, Cairo University, Cairo.
Safwat, K., Nabil, A. and Hasan, M.K. (2004) Predicting International Freight Flows for Trade: Simultaneous Multimodal, Multi-Commodity, Network Equilibrium Model. Transportation Research Record, 1882, 129-139.
Mathisena, T.A. and Hanssena, T.S. (2014) The Academic Literature on Intermodal Freight Transport. Transportation Research Procedia, 3, 611-620. https://doi.org/10.1016/j.trpro.2014.10.040
Duan, L., Tavasszy, L. and Peng, Q. (2017) Freight Network Design with Heterogeneous Values of Time. Transportation Research Procedia, 25, 1144-1150. https://doi.org/10.1016/j.trpro.2017.05.127
Safwat, K.N.A. and Brademeyer, B. (1988) Proof of Global Convergence of an Efficient Algorithm for Predicting Trip Generation, Trip Distribution, Modal Split and Traffic Assignment Simultaneously on Large-Scale Networks. Computers & Mathematics with Applications, 16, 269-277. https://doi.org/10.1016/0898-1221(88)90143-5