To calculate the transport properties you need to use some packages like BoltzTraP [1] and ShengBTE [2]. These codes employ your DFT results (performed by VASP, QE, and SIESTA) to calculate the transport properties such as electrical conductivity.
[1] Madsen, G.K. and Singh, D.J., 2006. BoltzTraP. A code for calculating band-structure dependent quantities. Computer Physics Communications, 175(1), pp.67-71.
[2] Li, W., Carrete, J., Katcho, N.A. and Mingo, N., 2014. ShengBTE: A solver of the Boltzmann transport equation for phonons. Computer Physics Communications, 185(6), pp.1747-1758.