Travel Demand Modeling

Travel Demand Model Update and Demographics Tyler, Texas Transportation planning in the Tyler urbanized area is performed by the Tyler Area MPO in close cooperation with the TxDOT. The travel demand forecast model for the area is maintained by TxDOT using the TRIPCAL5 program for the trip generation. This model is an excellent ‘what if’ tool in the MPO planners arsenal. However, it requires various demographic data, including population, number of households, average household size, median household income, and employment for the base year and the forecast years as inputs. The Tyler Area MPO is responsible for providing this required demographic data to TxDOT. The Tyler Area MPO has requested the resources of a consulting firm to assist in developing 2018 base-year and 2050 planning horizon-year socioeconomic data inputs to the TRIPCAL5 trip generation program. In addition, the MPO will need intermediate year data (2023, 2028, and 2033). These inputs include population, households, income and employment. The following general steps will be employed in the development of the demographic and socioeconomic data: Collect data from various data sources, both public and private. Develop population, group quarter, household, and employment control totals for base year and forecast years Develop base year population, household, and employment numbers at the TAZ level. Develop forecast year population, household, and employment numbers at the TAZ level. Develop median income for TAZs for base year, and estimate trends to forecast future years. Conduct demographic review for reasonableness and completeness. Document the methodology used with this report. A quality control process will be used to ensure the accuracy of the results produced. Both the accuracy of the calculations and the reasonableness of the results will be assessed during the quality control process. At a Glance 2023 Project Completed Markets Transportation Services Transportation

2040 Horizon Travel Demand Model El Paso, Texas Working directly with the El Paso MPO, TxDOT El Paso District, and TxDOT Transportation Planning and Programming (TPP), DCCM completed a total redesign and redevelopment of the El Paso MPO TDM to bring it up to state-of-the-practice standards. DCCM also improved model reporting and production of level-of-service measures in sufficient detail to support air quality conformity analysis that used the newly deployed MOVES mobile source emissions software. To accomplish this, DCCM carried out the following transportation planning and analysis services: Developed the model architecture necessary to satisfy the planning requirements for the region Incorporated updated demographic and employment base year estimates and future year forecasts (created by DCCM under a separate project) into the travel demand model Verified the base-year network Developed the forecast-year network Developed and tested model components and calibrated model components Validated and implemented the overall model user interface Using the redesigned model, DCCM performed testing and analysis of forecast year transportation scenarios for the El Paso 2040 MTP update. DCCM also performed a transit onboard survey designed to meet FTA best practice guidelines and provide data capable of supporting calibration of a model for use in FTA New Starts and Small Starts investment-grade transit corridor analysis. At a Glance 2013 Project Completed Markets Transportation Services Transportation

TxDOT | Texas Statewide Analysis Model (SAM) Version 5 Statewide, Texas DCCM has been the lead architect and developer of all five iterations of TxDOT’s Statewide Analysis Model (SAM), a state-of-the-practice multimodal travel demand model covering the entire state of Texas. This innovative tool uses current travel behavior data from surveys and forecasted demographics to predict future travel patterns, equipping decision-makers with the ability to understand future travel demand and assess how transportation projects serve Texas’ mobility needs. The SAM integrates passenger and freight components, providing forecasts for personal vehicles, commercial airlines, intercity and high-speed rail, truck trips, and freight shipments by rail, air, and water. It has been a cornerstone for TxDOT since SAM-V1 in 2001, supporting rapid forecasts for applications such as prioritizing passenger rail corridors, producing performance measures for the statewide transportation plan, providing inputs for the Freight Mobility Plan, analyzing traffic during events like the 2024 Solar Eclipse, and generating traffic forecasts for corridor and project studies. DCCM continues to support TxDOT through ongoing on-call services, ensuring the SAM remains current with best practices, and support TxDOT’s changing needs. These services include designing and implementing maintenance changes, updating software, networks, and demographics. At a Glance ~268,600 Square Miles $1,453,410 Project Cost Markets Transportation Services Transportation