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Transport properties of the vortex lattice in high temperaturesuperconductors are studied using numerical simulations in the case in whichthe non-local interactions between vortex lines are dismissed. The resultsobtained for the longitudinal and transverse resistivities in the presence ofquenched disorder are compared with the results of experimental measurementsand other numerical simulations where the full interaction is considered. Thiswork shows that the dependence on temperature of the resistivities is welldescribed by the model without interactions, thus indicating that many of thetransport characteristics of the vortex structure in real materials are mainlya consequence of the topological configuration of the vortex structure only. Inaddition, for highly anisotropic samples, a regime is obtained wherelongitudinal coherence is lost at temperatures where transverse coherence isstill finite. I discuss the possibility of observing this regime in realsamples.Comment: 9 pages, 7 figures included using epsf.st

Longitudinal and transverse dissipation in a simple model for the vortex lattice with screening