This dataset contains the average of the traffic flow estimations generated by the traffic flow model of the city of Santiago de Compostela during the last hour. The dataset contains one record for each main segment of the city street and road network, with its identifier and geometry (line) and with the average of the estimations of the traffic flow intensity (number of vehicles per hour) generated by the model during the last hour. A coverage measure provides the percentage of data available to calculate the average, with respect to the total expected for the whole hour.