Comments on the system operation:

1-DPF was installed on the bus on 2015-02-19, but
bus was stationary for about one month and started working from 2015-02-16.
2-DPF was cleaned on 2015-10-05 for the first time.
3-The second cleaning was done on 2015-10-19.
4- The third cleaning was done on 2016-02-04.
5-A new core was installed on 2016-06-12.
6-DPF was cleaned on 2016-06-25.
7- Unavailable data were due to bus stops or data logger problems.