01046126

Component

This paper presents a generalized algorithm for determining the optimum transportation route in cost heterogeneous terrain. This terrain consists of two subregions separated by a complex cost boundary curve, which is represented by a multi-interval cubic spline. The optimum route is based on the criterion of minimum construction, maintenance and operation cost and allows the direct determination of the corner point without iteration. This algorithm requires the solution of a sixteenth order algebraic equation having real and conjugate complex roots. The optimum route corresponds to that root yielding the maximum saving in cost. The developed algorithm was implemented to special cases with straight cost boundary line yielding excellent agreement with available analytical solutions. The paper reveals that the effect of cost ratio on the location of optimum route as well as on saving in cost is quite significant.

01042056

07-3284

English

20p

2007

Transportation Research Board 86th Annual Meeting

CD-ROM

Figures (9) ; References (11) ; Tables (1)

Highways; Location; Location theory; Optimization; Roads; Routes and routing; Terrain; Terrain evaluation; Transportation planning

Subregional analysis; Subregional planning

Economics; Highways; Planning and Forecasting; I72: Traffic and Transport Planning

Transportation Research Board Annual Meeting 2007 Paper #07-3284

TRIS, TRB

Feb 8 2007 7:59PM