The supporting dataset includes an example of PNC from mobile measurement and SMPS, multiple metrics from mobile measurement by travel mode and time, PNC vs LDSA by the level of average diameter from walking and bus measurement, example of short-term peak event, corrected PNC from Discmini and that measured by SMPS, examples of PNC depeaked are overlayed with original PNC, average PNC both original and depeaked and the percentage of decline by period, and the last is corrected depeaked PNC vs SMPS data.