Table 6-2 - 2015 Daily Volume Subarea V/C by Facility Type
| Facility type | Description | Links | Average Count Volume | Average Model Volume | V/C | Acceptable Threshold | Acceptable Threshold - Report (D1RPM/FSUTMS) | Preferable Threshold - Report (D1RPM/FSUTMS) |
|---|---|---|---|---|---|---|---|---|
| 2x | Divided Arterials | 45 | 15,947 | 15,823 | 0.99 | 0.90-1.10 | +/-15%(+/-10%) | +/-10%(+/-7%) |
| 3x | Undivided Arterials | 37 | 6,068 | 5,759 | 0.95 | 0.90-1.10 | +/-15%(+/-10%) | +/-10%(+/-7%) |
| 4x | Collector Facilities | 51 | 3,176 | 3,837 | 1.21 | 0.85-1.15 | +/-25%(+/-15%) | +/-20%(+/-10%) |
| 5x | Centroid Connectors | - | ||||||
| 6x | One-way Facilities | 10 | 9,020 | 7,282 | 0.81 | 0.80-1.20 | (+/-20%) | (+/-15%) |
Table 6-3 - 2015 Daily Volume Subarea RMSE by Volume Group
| Volume Group | No. Links | Count | Model | %RMSE | Acceptable Threshold | Preferable Threshold |
|---|---|---|---|---|---|---|
| Less Than 5,000 | 62 | 2,491 | 2,869 | 110.1 | 100% | 45% |
| 5,000 - 9,999 | 41 | 5,173 | 5,555 | 14.1 | 45% | 35% |
| 10,000 - 14,999 | 19 | 12,089 | 11,710 | 29.3 | 35% | 27% |
| 15,000 - 19,999 | 12 | 17,333 | 18,440 | 24.7 | 35% | 25% |
| 20,000 - 29,999 | 3 | 24,167 | 25,277 | 21.0 | 27% | 15% |
| 30,000 - 49,999 | 6 | 35,667 | 32,904 | 13.1 | 25% | 15% |
| 50,000 - 59,999 | ||||||
| 60,000+ | ||||||
| Area-wide | 8,411 | 8,350 | 34% | 50% | 30% |
Table 6-4 below shows the AADT counts from FTO and daily volume along US 27 at FTO count stations for the base year 2015. Table 6-5 shows the corridor level RMSE for US 27 and US 17. The validation statistics for the evaluated corridors provide very low RMSE values, which is an indication of a good match between model volumes and observed traffic counts; thus, the model was determined to be well validated and could be used with confidence for forecasting future traffic for the alternative corridors.