14.11.2014 Views

FSUTMS Comprehensive Modeling Workshop - Cambridge ...

FSUTMS Comprehensive Modeling Workshop - Cambridge ...

FSUTMS Comprehensive Modeling Workshop - Cambridge ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Highway-Only Mode Choice – Occupancy Model<br />

►Data Requirements (Cont’d)<br />

Auto Occupancy Rate (AOR)<br />

AOR = Total Persons/Total Vehicles (for example 1.10)<br />

Auto Occupancy Factor (AOFAC)<br />

AOF = 1.0 / Auto Occupancy Rate (for example 0.909)<br />

By Trip Purpose<br />

Home-Based Purposes<br />

Non-Home Based Purpose<br />

For Other Purposes (TT, IE, EE) the AOFAC = 1.0<br />

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

21<br />

Highway-Only Mode Choice – Occupancy Model<br />

► Data Requirements (Cont'd)<br />

Where do you find auto occupancy factors?<br />

Survey Data<br />

• Travel Characteristics Surveys<br />

• Roadside Travel Surveys (corridor/subarea<br />

Census Journey-to<br />

to-Work/ACS Data<br />

• Home-Based Work Only<br />

Borrowed from other similar areas<br />

National Household Travel Survey<br />

NCHRP 365 Report<br />

subarea specific)<br />

Set during model validation and not adjusted for future<br />

years<br />

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

22<br />

8-11

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!