Research Article
Bus Travel Time Deviation Analysis Using Automatic Vehicle Location Data and Structural Equation Modeling
Table 5
Standardized direct, indirect, and total effects.
| | | Departure
delay | Dwell
time | Segment
length | Accumulated
delay | Number of access
connections | Number of
traffic signals |
| | Accumulated delay | | | | | | | | Direct | −0.666 | na | na | na | na | na | | Indirect | 0.000 | na | na | na | na | na | | Total | −0.666 | na | na | na | na | na | | Number of access connections | | | | | | | | Direct | na | na | 0.302 | na | na | na | | Indirect | na | na | 0.000 | na | na | na | | Total | na | na | 0.302 | na | na | na | | Number of traffic signals | | | | | | | | Direct | na | na | 0.765 | na | na | na | | Indirect | na | na | 0.000 | na | na | na | | Total | na | na | 0.765 | na | na | na | | Travel time deviation | | | | | | | | Direct | −0.301 | 0.224 | −0.381 | −0.168 | −0.158 | 0.312 | | Indirect | 0.112 | 0.000 | 0.191 | 0.000 | 0.000 | 0.000 | | Total | −0.189 | 0.224 | −0.190 | −0.168 | −0.158 | 0.312 |
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Note: “na” denotes “not applicable.”
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