Section 3.2 Work Location Model

The work destination choice model predicts the usual work location for all workers in the population. The model uses size terms to capture the number and type of jobs available in a zone, as well as the employment-related “attractiveness” of a zone. Table 3-2 and Table 3-3 show the county-to-county worker flows in calibration targets and from model estimation, respectively. Table 3-4 shows the difference between model values and target worker flows.

Table 3-2. Calibration Target Worker Flows

Table 3-3. Model Worker Flows

Table 3-4. Worker Flows Percentage Difference (Model - Calibration Targets)

Work Location Distance Summary

A comparison of observed and estimated distance trip frequency is shown in Figure 3-1. Only the workers who do not work-from-home and who have a work location outside of the home TAZ are included in the comparison. Table 3-5 shows the mean work location distance for different segment of workers. The table shows reasonable match between the survey targets and the models outputs.

Figure 3-1. Work Location Distance Summary

Table 3-5. Average Target and Model Work Distance (Miles)

Section 3.3 School Location Model

Two school location choice models are applied in CT-RAMP, one for K-12 students and one for college students. The K-12 school destination choice model predicts the usual school location for all grade-level students. The college destination choice model predicts the school location for college students, and accounts for the updated university location choice model. Table 3-6 below shows the mean distance and percentage intrazonal for different student types.

Table 3-6. Average School Distance and Intrazonal Percentage

Atlanta Regional Commission, 2026