Skip to Search Skip to Left Navigation U.S. Department of Transportation (US DOT) Research and Innovative Technology Administration (RITA) Bureau of Transportation Statistics (BTS)Bureau of Transportation Statistics (BTS) - Research and Innovative Technology Administration (RITA) - United States Department of Transportation (USDOT, US DOT or DOT)
  ABOUT RITA | CONTACT US | PRESS ROOM | CAREERS | SITE MAP
Bureau of Transportation Statistics
Data and Statistics
Bookstore
Programs
About BTS
Upcoming Press Releases
External Links
Intelligent Transportation Systems
National Transportation Library
Research, Development and Technology
Transportation Safety Institute
University Transportation Centers
Volpe National Transportation Systems Center
Printable Version

Table 3 - Multivariate Analysis of Model 1

Excel | CSV

Explanatory variables Estimates Standard errors Degrees of freedom Scaled deviance t-statistics Sig. at 0.05 Mean deviance
Constant -5.8700 0.4580 50 15,022.0 -12.81 Yes 300.4
QNMm 0.3241 0.0297 49 748.6 10.91 Yes 15.3
QNMn 0.0835 0.0183 48 483.6 4.57 Yes 10.1
QMm 0.0683 0.0188 47 241.5 3.64 Yes 5.1
QMn 0.1296 0.0230 46 142.8 5.63 Yes 3.1
SPEED 0.0260 0.0033 45 75.1 7.79 Yes 1.7
LWm -0.0727 0.0320 44 70.7 -2.27 Yes 1.6
LWn -0.0718 0.0305 43 69.1 -2.35 Yes 1.6
LNm -0.0176 0.0044 42 55.0 -3.97 Yes 1.3
SHDW (2) -0.0176 0.0069 40 47.5 -2.55 Yes 1.2
SHDW (3) -0.0255 0.0100 40 47.5 -2.56 Yes 1.2
LU (2) 0.0159 0.0055 39 39.0 2.91 Yes 1.0

Note: Estimates for factors (2) and (3) are the differences compared with the reference level (1).