VE Definitions UNDER CONSTRUCTION

*** NOTE: This page will be a cliff-notes version of Mar2019 VE Training notes which better integrates with other existing wiki resources, and can be used in training.***

Definitions used by VisionEval, organized by the following VERPSM Concepts

• Household Synthesis
• Vehicles & Fuels
• Congestion, freight, and emissions
• Budgets & non-auto modes
• Local policy actions
• Setup & Validation

1. Household Synthesis

VERSPM Packages: (VESimHouseholds, VELandUse) + VEHouseholdVehicles-AssignDrivers?

DEFINITIONS

• Age groups (for persons and workers): 0-14, 15-19, 20-29, 30-54, 55-64, 65+
• Lifecycle (aggregated NHTS definition) – used in multi-modal travel module
  • 01: one adult, no children
  • 02: 2+ adults, no children
  • 03: one adult, children (corresponds to NHTS 03, 05, and 07)
  • 04: 2+ adults, children (corresponds to NHTS 04, 06, and 08)
  • 09: one adult, retired, no children
  • 10: 2+ adults, retired, no children
• Annual income???
• Types of households:
  • Regular households - related and unrelated persons living in the same dwelling unit
  • Group quarters households - persons living in non-institutional group quarters such as college dorm (household size =1)
• Types of dwelling Units:
  • Single-family (SF)
  • Multifamily (MF)
  • Group Quarters (GQ)
• Home and Work Location Types:
  • Urban - located within an urbanized area <MORE HERE...vs. "urbanized">
  • Town - located in a smaller urban area that does not have enough population to qualify as an urbanized area
  • Rural - located in an area characterized by low density dispersed development
• Bzone-level Built Form “D” variables, based on EPA Smart Location Database definitions
  • DENSITY
    • Population density (EPA SLD D1B)
    • Employment density (D1C)
    • Activity density (employment + households) (D1D)
  • DIVERSITY
    • ratio of jobs to households (D2A_JPHH)
    • ratio of workers living in the zone to jobs located in the zone (D2A_WRKEMP).
    • entropy measure calculated from the number of jobs by sector and number of households (D2A_EPHHM)
  • Destination ACCESSIBILITY measure (D5), harmonic mean of jobs within 2 miles and population within 5 miles of the Bzone centroid
  • Pedestrian-oriented network **DESIGN **measures (D3bpo4), an input
  • Bzone-level Urban MIXED USE measure. Based on the 2001 National Household Travel Survey measure of the block group level urban/rural indicator. This measure developed by Claritas uses the density of the tract and surrounding tracts to identify the urban/rural context of the tract and identified 4 categories: urban, suburban, second city, town and rural. The urban category roughly corresponds to the inner portions of urbanized areas that are generally characterized by more urban and mixed-use development.

2. Vehicles & Fuels

(VEHouseholdVehicles, VEPowerTrainsAndFuels, VETravelPerformance-Opcosts&Fee2coverRdcosts)+workers get auto own vs. car svc & own adjustment. AssignDrivers?, veh type, age, costs (own, op)

3. Congestion, freight, and emissions

(VETravelPerformance, VETravelPerformance-emissions/socCosts, Com+PtranEnergy&Emissions; VETransportSupply) ComSvc,HvyTrk, congestion adj to FC split, ITS/Rd performance, fuel economy adj, emissions

4. Budgets & non-auto modes

(VEHouseholdTravel, VETravelPerformance-budget), HH VMT estim+trips, alt mode trips/diversion, TDM/IMP methods?

5. Local policy actions

(various), MArea attributes (VETransportSupply), rds, transit,res pkg restrictions, TDM/IMP, CarSvc?, ITS & Fuel economy/ecodrive adj?

6. Setup & Validation

(VETravelPerformance/LoadDefaultRoadDmtValues)