Time-Saved Evaluation and Social Discount Rate

  • Hirotada Kohno
Part of the New Frontiers in Regional Science: Asian Perspectives book series (NFRSASIPER, volume 1)


The direct economic effects such as saving effects of the running costs and saving effects of the time required are formed owing to the influence of the newly constructed expressway, the most part of which are “saved benefits,” so easily measured and of clear notion. But, the saved effects of the time required are in terms of physical unit of hour and minute, which must be converted to these in terms of money so as to add up the other various effects together. What acts as intermediary to this conversion is the “monetary evaluation rate of the saved time” (below, based on [12], [10], [11], etc.).


Discount Rate Planning Horizon Time Preference Public Investment Evaluation Rate 
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  1. 1.
    Arrow, K.J., and R.C. Lind. 1970. Uncertainty and the evaluation of public investment decisions. A.E.R 60(3): 364–378 [Translated by Tokita, Tadahiko.1972. Ex. & Auto. 15(9): 68–79]Google Scholar
  2. 2.
    St. Clair, G.P., and N. Leider. 1960. Evaluation of unit cost of time and strain and discomfort cost of non uniform driving. In Economic analysis in highway programming, location and design. Washington, DC: Highway Research Board, Special Report 56.Google Scholar
  3. 3.
    Eckstein, O. 1957. Investment criteria for economic development and the theory of intertemporal welfare economics. The Quarterly Journal of Economics 71(1): 56–85.CrossRefGoogle Scholar
  4. 4.
    Eckstein, O. 1958. Water resource development: the economics of project evaluation. Cambridge, MA: Harvard University Press.Google Scholar
  5. 5.
    Eckstein, O. 1961. A survey of the theory of public expenditure criteria. In Public finance: needs, sources and utilization, ed. Buchanan J.M., 493–504. Princeton: Princeton University Press.Google Scholar
  6. 6.
    Feldstein, Martin S. 1964. The social time preference discount rate in cost benefit analysis. The Economic Journal 74(294): 360–379.CrossRefGoogle Scholar
  7. 7.
    Hirshleifer, J. 1958. On the theory of optimal investment decision. The Journal of Political Economy LXVI(4): 329–352.CrossRefGoogle Scholar
  8. 8.
    Kohbe, Susumu (ed.). 1959. Research report on the traffic demand analysis between Tokyo and Komaki of Central Motor Expressway, of the expressway system running through the national land <volume of Generated Traffic>. The Productivity Institute of Waseda University.Google Scholar
  9. 9.
    Kohbe, Susumu (ed.). 1961. Estimating method of traffic volumes. Japan Highway Public Corporation, Economic Research Office (H. Kohno in charge of this volume).Google Scholar
  10. 10.
    Kohno, H. 1973. Economic effects of public investment. In Lecture on transport economics, ed. Yukihide Okano, et al., 179–211. Tokyo: Seirin-Shoin-Shinsha.Google Scholar
  11. 11.
    Kohno, H. 1973. Public investment criteria. In Lecture on transport economics, ed. Yukihide Okano, et al., 212–231. Tokyo: Seirin-Shoin-Shinsha.Google Scholar
  12. 12.
    Kohno, Hirotada. 1974. Theory and measurement of time saved benefits. Expressways and Automobiles XVII(11): 21–29.Google Scholar
  13. 13.
    Konno, Genpachiro (ed.). 1967. Benefits studies of the vehicles running on the intracity expressway network. Express Highway Research Foundation of Japan, Benefits Studies Committee.Google Scholar
  14. 14.
    Marglin, S.A. 1963. Approaches to dynamic investment planning. Amsterdam: North-Holland Pub.Google Scholar
  15. 15.
    Marglin, S.A. 1963. The social rate of discount and the optimal rate of investment. The Quarterly Journal of Economics 77(1): 95–111. (Translated by Katsuyuki Kurashimo. 1963. Ex. & Auto. 6(12): 57–65).Google Scholar
  16. 16.
    Herbert Mohring. 1964. Relation between optimum congestion tolls and present highway user charges. Highway Research Record 47: 1–14. (Translated by Tetsumi Shin. 1965. Ex. & Auto VIII(8): 73–83).Google Scholar
  17. 17.
    Negishi, Takashi. 1963. On the concept of benefits. In Studied on the toll rate system of metropolitan expressway, ed. Mitsugu Nakamura, et al., 40–46, Metropolitan Expressway Public Corporation.Google Scholar
  18. 18.
    Oort, C.J. 1969. The evaluation of travelling time. Journal of Transport Economics and policy III(3): 279–286. (Translated by T. Shin. 1970. Ex. & Auto. XIII(6): 70–76).Google Scholar
  19. 19.
    Oishi, Yasuhiko. 1964. Comment on the benefit evaluation principle. Expressways and Automobiles 6(4): 18–25 & 31.Google Scholar
  20. 20.
    Sakashita, Noboru. 1965. A microscopic theory of traffic assignment. In: Papers and proceedings of the First Far East conference of the Regional Science Association, vol. I, 49–59 Tokyo, Japan, September 11–14, 1963.Google Scholar
  21. 21.
    Committee on Planning and Design Policies, American Association of State Highway Officials. 1960. Informational report by [the committee] on road user benefit analysis for highway improvements. Part 1, AASHO, Washington <commonly called Red Book>.Google Scholar
  22. 22.
    Japan Highway Public Corporation (Business bureau, business planning section). 1971. Reference materials necessary for 1972(s.47) budget to demand at the stage of rough estimate (new undertaking of ordinal toll road), mimeo.Google Scholar
  23. 23.
    Japan Highway Public Corporation (Business Bureau, economic section). 1961. ‘A’: A comment on the concept of benefits or time-saved benefits; ‘B’: Estimation of Time-Saved Benefits, mimeo.Google Scholar
  24. 24.
    Subcommittee of the Driving Costs Studies on Intracity Expressway. 1966. Report of automobiles driving costs studies. Tokyo: Metropolitan Expressway Public Corporation.Google Scholar
  25. 25.
    Metropolitan Expressway Association. 1967. Studies of economic effects formed by the construction of intracity expressway—estimation of time saved benefits per unit.Google Scholar
  26. 26.
    U.S. Dept. of Commerce, Bureau of Public Road. 1950. Highway capacity manual. Washington, DC.Google Scholar
  27. 27.
    Foster, C.D., and M.E. Beesley. 1963. Estimating the social benefit of constructing an underground railway in London. Journal of the Royal Statistical Society, Series A (General) 126. Japanese ed: Ex. & Auto. 17(5) 64–74; (6) 53–71; (7) 46–61 (trans: Kubotera, Yoshitsugu, Toda, Chifumi, and Kohno, H. (as advisor).Google Scholar

Copyright information

© Springer Japan 2016

Authors and Affiliations

  • Hirotada Kohno
    • 1
  1. 1.Professor Emeritus University of TsukubaTsukubaJapan

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