Research Article
Bus Travel Time Deviation Analysis Using Automatic Vehicle Location Data and Structural Equation Modeling
Table 4
Sample correlation matrix.
| | | Percentage of
completed trip | Departure
delay | Segment
length | Dwell
time | Accumulated
delay | Number of access
connections | Number of
traffic signals | Travel time
deviation |
| | Percentage of completed trip | 1.000 | −0.035 | 0.426 | 0.128 | 0.340 | 0.145 | 0.282 | 0.035 | | Departure delay | na | 1.000 | 0.000 | −0.036 | −0.566 | 0.000 | 0.000 | −0.121 | | Segment length | na | na | 1.000 | 0.008 | 0.027 | 0.326 | 0.737 | −0.134 | | Dwell time | na | na | na | 1.000 | −0.051 | −0.036 | −0.020 | 0.450 | | Accumulated delay | na | na | na | na | 1.000 | 0.166 | −0.122 | −0.133 | | Number of access connections | na | na | na | na | na | 1.000 | 0.200 | −0.176 | | Number of traffic signals | na | na | na | na | na | na | 1.000 | 0.070 | | Travel time deviation | na | na | na | na | na | na | na | 1.000 |
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Note: “na” denotes “not applicable.”
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