| Peak
Utility |
Variable Name | Model #18W | Model #19W | ||
| Coeff. | T-Stat | Coeff. | T-Stat | ||
| # | Constant | -0.2877 | (5.8) | -0.1309 | (9.5) |
| # | CTFT | -0.05540 | (3.0) | -0.05556 | (3.0) |
| # | SR Dummy | 0.2946 | (2.7) | 0.2953 | (2.7) |
| # | Auto Distance | 5.153E-02 | (4.6) | 5.254E-02 | (4.7) |
| # | Auto Distance^2 | -8.366E-04 | (3.7) | -8.464E-04 | (3.8) |
| # | Bridge Dummy | -0.3912 | (2.0) | -0.387 | (1.9) |
| # | HH Income | 2.861E-06 | (1.9) | ||
| # | SFOBB WB | -0.6447 | (1.8) | -0.6496 | (1.8) |
| # | Retail Industry | -0.3421 | (2.0) | -0.3515 | (2.1) |
| Log Likelihood | -1391.6 | -1393.5 | |||
Utility(Off-Peak) = 0
Utility(Peak) = constant + beta01 * CTFT . . . etc.
Variable Definitions:
CTFT = Congested Time Less Free-Flow Time, zone-to-zone
SR Dummy = Share Ride 2+ Dummy variable
Auto Distance = Door-to-door auto distance, in miles
Auto Distance^2 = Square of door-to-door auto distance, in miles
Bridge Dummy = Bridge crossing dummy variable (based on drive alone toll)
HH Income = Household income in 1989 constant dollars
SFOBB WB = Bay Bridge AM Westbound dummy variable
Retail Industry = Retail occupation, by zone of work
Log Likelihood Ratio Test: 95% change that Model #18W is statistically significantly
better than MOdel #19W, 2*(1393.5 - 1391.6) = 3.8, at 1 degrees of freedom
Note: in the final MTC model system application, model #19W is used.