Table 9 Confidence intervals and significance tests of key indicators (statistical analysis).

From: Collaborative optimization strategy for urban highways and roads based on electronic toll collection lane regulation

Metric

Baseline mean

Proposed mean

95% CI (Proposed)

p value (t-test)

Congestion duration (min)

42.7

18.2

[16.4, 19.6]

 < 0.001

Lane utilization (%)

58.5

72.9

[70.1, 75.8]

 < 0.001

Throughput (veh/hr)

1454

1578

[1552, 1605]

0.003

Travel time (min)

36.8

31.6

[30.4, 32.5]

0.007

  1. Data obtained from simulation with SUMO under controlled parameter settings.
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