Dear SUMO support team,
I am currently working on a traffic simulation study, in which I have developed a calibrated baseline scenario using turn counts imported from an Excel file and routeSampler.
Based on this baseline scenario, I am now attempting to develop alternative scenarios involving demand reductions for specific vehicle classes. According to the desired reduction percentages, I have calculated the corresponding target number of vehicles for
each category.
During the generation of the new route files, I tested the use of the --total-count option for each vehicle type in order to impose the reduced demand. However, I observed that the performance of routeSampler decreases compared to the baseline
scenario.
In addition, it seems that this reduction is not being applied uniformly across the network. More specifically, it appears to affect mainly the secondary roads rather than the main corridor, particularly in the parts of the network with more complex geometric
characteristics.
I would therefore like to ask whether this behavior could be related to the way routeSampler handles demand reduction when
--total-count is imposed for each vehicle class.
More generally, I would greatly appreciate your advice on the most appropriate methodology for reducing demand by vehicle class in a uniform manner, while preserving, as far as possible, the proportions reflected in the original turn counts.
Thank you very much for your time and support.
Kind regards,
Nikiforos Botzoris
