Deal with NPMRDS links matching to multiple TMAS stations in tier 1

VolpeUSDOT / FHWA-DANATool

The Database for Air Quality and Noise Analysis (DANA) Tool provides traffic-related inputs to the Motor Vehicle Emission Simulator (MOVES) vehicle emissions model and the Traffic Noise Model (TNM).

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Deal with NPMRDS links matching to multiple TMAS stations in tier 1 #40

Open wchupp opened 1 year ago

wchupp commented 1 year ago

For process 1, there a small number of cases where multiple TMAS stations measure a single NPMRDS link. This increases the number of records in the final dataset, giving repeated records for a single NPMRDS link. The repeat records have different vehicle type distribution data because they come from two different TMAS stations. We should decide if this is the desired functionality or if it is a bug and we should fix as soon as possible.

david-kall commented 1 year ago

I emailed the TMAS data contact on 11-9-22 to see if there is an error in the TMAS data or if the data is good and we need to account for this possibility. After we hear back from him we can decide how to address repeated records.