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KY 4/22 Module 1b Chapter 3 in the TS Manual Main Survey Types.


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KY 4/22 Module 1b Chapter 3 in the TS Manual Main Survey Types Main Survey Types Household travel/activity Surveys Vehicle Intercept and External Station Surveys Transit On-board Surveys Commercial Vehicle Surveys Workplace and Establishment Surveys Special Generator, Visitor Surveys
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Slide 1

KY 4/22 Module 1b Chapter 3 in the TS Manual Main Survey Types

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Main Survey Types Household travel/action Surveys Vehicle Intercept and External Station Surveys Transit On-board Surveys Commercial Vehicle Surveys Workplace and Establishment Surveys Special Generator, Visitor Surveys Parking Surveys

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Household Travel/Activity Surveys In the 1950s and 1960s, huge specimen overviews (3 to 5% of all families) directed in-home were common. For instance, a zone with 1 million populace, or 400,000 family units, would test 16,000 hhlds (4%). Objective was to make root/destination framework for district. Zones (TAZ) for displaying were much bigger, in light of the fact that PC limit was restricted.

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Household travel/action studies TODAY Typically done utilizing RDD, and normally in the scope of 2,000 to 15,000 family units, contingent upon the many-sided quality of the stratification, e.g. SCAG review around .3% of family units. Objective is no more to get O/D lattice, yet all the more regularly to upgrade trek rates, by reason and mode, and outing length recurrence dispersion.

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Household travel/movement studies Survey strata to fit local model Household size * # of vehicles # of laborers * # of vehicles Household size * Household Income Your model may incorporate different variables.

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Vehicle Intercept and External Station Surveys Often to catch starting point/destination in extensive zones. Systems: Roadside meeting License plate recording Handout/mailback Photos from StreetSmarts/DataSmarts, Atlanta

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Roadside Origin/Destination Surveys Source: StreetSmarts/DataSmarts, GA 2003

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Roadside Origin/Destination Surveys Source: StreetSmarts/DataSmarts, GA 2003

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Transit On-Board Surveys Often consolidated with showcasing investigation, particularly “rider/non-rider” overviews. Travel office may know check of boardings, however need data about client qualities, particularly recurrence of travel excursion making, vehicle accessibility (decision versus hostage markets). Family unit travel/movement review may not catch enough travel excursions or clients for utilization in mode decision models. (may likewise require “augment samples”)

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On-board Transit Surveys Training with pretending is CRITICAL, NYMTA illustration Union guidelines for drivers may direct overview execution. Subside Foote at Chicago Transit Authority is a decent contact.

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Commercial Vehicle Surveys Sample Frame issues Heavy Duty Trucks All business vehicles. Numerous are light obligation trucks. Transport as their primary industry, e.g. FedEx, or as a feature of their administration, e.g. flower specialists

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Heavy Duty Vehicle Surveys Weigh stations “relieved” that draw over is not for an infringement, but rather for a study

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Commercial Vehicle Surveys Recruitment Fleets Independents State/Regional Trucking Association Incentives to EACH Driver

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Workplace and Establishment Surveys Applications: Downtown or other vocation focuses, expansive structures, travel request administration projects (carpooling), ITS projects (data frameworks, e.g. web based, booth based, remote PDA) Workplace-based: Email or web studies have high reaction rates, on the grounds that it is clear that the superintendent has consented to partake, and that it is suitable for the worker to utilize worktime to finish the review Intercept overviews (PDA, freebee/mail-back) frequently utilized.

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Special Generator and Visitor Surveys Washington, DC, Orlando, Branson with high vacationer markets Big shopping centers Airport reviews Often block studies (like foundation studies) or inn overviews (test inclination issues)

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Parking Surveys Quantity Occupancy Posted costs versus Expenses to people Distance to “final” destination Duration of stay .:t