A Modelling Approach
Edited by Bruno De Borger and Stef Proost
Chapter 6: Introducing spatial disaggregation and zoning in the Amsterdam model
Erik T. Verhoef, Frans Bal and Jeroen C.J.M. van den Bergh 6.1 INTRODUCTION Transport is an inherently spatial phenomenon: if there were no space, there would be no demand for transport as most transport demand serves to satisfy spatial mismatches between the demand for and supply of goods and factors (for instance, peak passenger travel often serves to overcome the spatial mismatch between the supply of labour, in residential areas, and the demand for labour, in centres of economic activity). Transport policies therefore often have spatially diﬀerentiated impacts, both in terms of eﬃciency and in terms of equity. A closely related feature of transport is that it takes place in a network environment. Nevertheless, the TRENEN model, so far, has been largely non-spatial in nature, and has been lacking a spatial transport network representation. The present chapter reports on recent eﬀorts to develop a spatial version of the TRENEN model for Greater Amsterdam. Section 6.2 discusses the technicalities of introducing these elements in TRENEN, and will propose a mathematical formulation. Section 6.3 reports on a linearized application to a basic network for Greater Amsterdam. Section 6.4 concludes. 6.2 A NETWORK IN TRENEN: THEORETICAL CONSIDERATIONS In this section, we will give a discussion of the ﬁrst attempt we made to introduce zones and networks in the TRENEN model. A number of important choices had to be made in terms of modelling characteristics (see Verhoef and Van den Bergh, 1996). Before turning to a mathematical formulation, it is important...
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