11 San Diego Work Related Travel Survey Brian Lane, SANDAG Kevin Stefan, HBA Specto ABJ40 Travel Survey Methods Committee January 16, 2013
22 Project Overview Produce tour-based commercial vehicle model Based on Calgary/Edmonton models Interim model from California Statewide system Survey of individual business establishments in San Diego County Two pilot surveys Surveys Dec May 2013 Model complete early 2014
33 Learning from 2001 AB Surveys Expanded from “commercial vehicle” to “work-related travel” Changed employment focus from land use to SOC Simplified by removing establishment and depot-specific forms Simplified by removing questions on shipment commodity & value
44 Sample Frame Establishment is basic sample unit 600 estab. with travel (2500 tours) Segments: Geography (4 or 5) × Industry (7) Establishment size (3 levels) × Industry (7) Special targets Most active shippers Fleet allocators (e.g. postal, newspaper, garbage, utilities) East San Diego County
55 Industry Group Overview Industry group Goal Sample rate Agriculture / Mining 20 ~1 in 30 (3.38%) Transportation / Utility 100 ~1 in 20 (4.80%) Wholesale100 ~1 in 55 (1.81%) Construction / Manufacturing 100 ~1 in 125 (0.79%) Retail80 ~1 in 205 (0.49%) Government / Office 100 ~1 in 360 (0.28%) Service100 Overall sample rate ~1 in 180 (0.55%)
66 Example Detailed Targets Retail by geography: 20 in North County (0.43%) 20 in North City (0.45%) 20 in Central (0.64%) 20 in South/east (0.49%) Retail by establishment size: 50 in est. of 1-29 employees (0.33%) 20 in est. of employees (2.35%) 5 in est. of 160+ employees (4.07%)
77 Survey Forms Establishment information (# employees, # vehicles) recorded during recruitment call Forms given to workers at establishment for survey day Survey covers 24 hours of work related travel
88 Survey Forms First pilot: one page per trip Like household travel surveys Survey packets unwieldy (11+ pages) Intimidating; reduced response Second pilot: travel log approach 11x17 page folded to make 4 letter pages Additional supplement for extra travel Production survey: ver. 7.3B
99 Instructions and definitions Name, date, estab. address Private vehicle use and reimbursement Time use
1010 Occ. code: SOC groups with example job titles Job title Location started work on survey day
1111 MakeModelYear GVW (weight) Ownership Fuel type Toll transponder Vehicle type: 12 FHWA classifications (+ SUV)
1212 Are you traveling today? Depart time Start odom. Codelist Travel log (2 example trips and space for 4 trips) Supplemental trip form: this page with codes and travel log (space for 8 trips per side)
1313 Stop # Travel mode to stop: Vehicle Walk Bicycle Bus Train Taxi
1414 De Vehicle type: Car Van Motorcycle Truck Odometer reading at stopWhichfreewaysused Which toll facilitiesused These four fields for vehicle trips only
1515 Stop purpose: Return to establishment Sales visit Work meeting Pick up / drop off goods Provide client service Fuel vehicle Personal Other Stop arrive time Stop location addressStopdeparttime
1616 Progress To Date Survey is in field 212 establishments recruited 8% recruitment rate Represents about 12,000 workers First surveys completed and returned
1717 For Additional Information Rick Curry, PM (619) Brian Lane, Survey PM (619) Kevin Stefan, HBA Specto (403)