Research Article
Empirical Analysis of Traffic Bottleneck at Beijing Expressways
Table 1
The coefficient value of fitting functions on traffic flow parameters in congestion.
| | 1 | 2 | 3 | 4 | 5 | 6 |
| Volume | | | | | | | | 0.66 | 0.57 | 0.35 | 0.60 | 0.47 | 0.42 | | 0.08 | 0.13 | 0.21 | 0.25 | 0.46 | 0.50 | | 2.96 | 3.67 | −0.23 | 3.56 | 2.56 | 1.21 | | 6.88 | MRE | 10.38% | Speed | | | | | | | | 0.95 | 0.53 | 0.59 | 0.61 | 0.57 | 0.39 | | 0.08 | 0.13 | 0.21 | 0.25 | 0.46 | 0.50 | | 2.77 | 3.75 | 0.21 | 3.61 | 2.74 | 1.21 | | 4.70 | MRE | 12.09% | Occupancy | | | | | | | | 0.08 | 0.03 | 0.03 | 0.03 | 0.04 | 0.03 | | 0.08 | 0.13 | 0.21 | 0.25 | 0.46 | 0.50 | | −0.34 | 0.53 | 3.46 | 0.36 | −0.21 | 4.54 | | 0.68 | MRE | 7.52% |
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