attachment_5_RFP DOIT 2025-036.pdf

STATE OF NEW HAMPSHIRE

DEPARTMENT OF TRANSPORTATION

RFP DoIT 2025-036 PROCUREMENT FOR STATEWIDE

TRAFFIC DATA MANAGEMENT SYSTEM (TDMS)

APPENDIX C SUPPLEMENTAL

Appendix C-1.21

STATION LINKS

1. Summary

The purpose of this Appendix is for the Vendor to provide documenta�on and prove the so�ware’s ability to take point-based data from traffic data collec�on devices and assign the data to segments within the NHDOT Linear Referencing System (LRS). The Vendor shall provide responses as an Appendix to the Proposal.

2. Vendor Response Requirement

The Vendor is required to provide a wri-en response outlining their approach for crea�ng segment-based Annual Average Daily Traffic (AADT) from point-based traffic volume data collec�on, including both short-dura�on counts and con�nuous count sites. This response should at a minimum contain the following:

• The Vendor’s response should cover the complete workflow, from data collec�on and processing to the modeling or es�ma�on of AADT on all roadway segments.

• The Vendor’s response should detail the methodologies and algorithms used for extrapola�ng point-based data to segment-based data, taking into account factors like traffic trends, seasonal varia�ons, and other relevant variables.

• The Vendor’s response should include techniques for handling missing or erroneous data to ensure robust and accurate AADT es�mates.

• The Vendor’s response should demonstrate their Proposed Solu�on’s ability to manage and analyze both short-dura�on and con�nuous count data efficiently.

• The Vendor’s response should explain how their system harmonizes these different data sources and addresses any discrepancies or conflicts that might arise.

• The Vendor’s response should describe their strategy for scaling their Proposed Solu�on to cover all roadway segments, indica�ng how the system will handle the high volumes of data involved and how it will maintain performance and accuracy. The scaling discussion should include the Proposed Solu�on’s ability to include all public roads, including local roadways maintained by others.

• The Vendor’s response should also present their approach to validate the es�mated

AADT values, such as through ground-truth checks, sta�s�cal analysis, or comparison with historical data. This would provide confidence in the reliability and accuracy of the generated segment-based AADT figures.