Before revision:  Using Monte Carlo simulation and an heuristic analytical approach based on exact results for the ASEP we make predictions for the RNAP traffic that might be tested in future experiments .
After revision:  Using Monte Carlo simulation and an heuristic analytical approach based on exact results for the TASEP with mean-field approximations, we predict the possible outcomes of the conflict between the traffic of RNAP motors (P particles engaged in transcription) and the replication forks (R particles). The outcomes, of course, depend on the dynamical phase of the TASEP of P particles. In principle, the model can be adapted to the experimental conditions to account for the data quantitatively .