Research Article
Predicting Freeway Work Zone Capacity Distribution Based on Logistic Speed-Density Models
Table 4
Operational capacities from the proposed method, HCM, Weng and Meng method [
12], WorkZoneQ and maximum 15-minute flow rate.
| City | Work Zone | Maximum 15-min flow rate (veh/hr/ln) | Estimated operational capacity (veh/hr/ln) | Predicted operational capacity (veh/hr/ln) | HCM | Logistic Model | WorkZoneQ | Proposed method | Weng and Meng[12] |
| Quad Cities | I80 WB | 1572 | 1239 | 1267 | 1296 | 1252 | 1383 |
| Quad Cities | I80 EB | 1488 | 1245 | 1206 | 1296 | 1318 | 1383 |
| Sioux City | I29 NB | 1512 | 1394 | 1413 | 1313 | 1257 | 1138 |
| Iowa City | I-380 NB | 1296 | 1199 | 1058 | 1424 | 1008 | 1383 |
| Council Bluffs | I80/I29 WB | 1524 | 1517 | 1376 | 1313 | 1281 | 1138 |
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