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FSUTMS Comprehensive Modeling Workshop - Cambridge ...

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Transit Mode Choice Models<br />

Simplified Version of Logit Equation<br />

(applies to Multinomial Logit and Nested Logit Models)<br />

Where:<br />

1−<br />

A − B<br />

A +<br />

C ∆<br />

1+<br />

e<br />

M =<br />

st<br />

µ +<br />

( D)<br />

M st = Mode Split to Transit Mode<br />

A = Transit Captives Fraction<br />

B = Highway Captives Fraction<br />

C = Slope Parameter which Determines Elasticity of the LOGIT Curve<br />

D = Point of Symmetry of the LOGIT Curve<br />

Δμ = Transit Impedance – Auto Impedance (Disutility Term)<br />

<strong>FSUTMS</strong>--CUBE MODELING TRAINING SERIES<br />

25<br />

Transit Mode Choice Models<br />

Multinomial Logit Model Example<br />

Choice<br />

AUTO<br />

TRANSIT<br />

Drive<br />

Alone<br />

Shared<br />

Ride<br />

Walk<br />

Access<br />

Auto<br />

Access<br />

<strong>FSUTMS</strong>--CUBE MODELING TRAINING SERIES<br />

26<br />

8-13

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