JSM 2004 - Toronto

Abstract #301522

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Activity Number: 412
Type: Contributed
Date/Time: Thursday, August 12, 2004 : 8:30 AM to 10:20 AM
Sponsor: Section on Survey Research Methods
Abstract - #301522
Title: Challenges in the Redesign of the Canadian Trucking Origin/Destination Survey
Author(s): Francois Gagnon*+
Companies: Statistics Canada
Address: R.H. Coats Bldg. - 11th Floor, Ottawa, ON, K1A0T6, Canada
Keywords: origin/destination survey ; survey redesign ; automated coding
Abstract:

The quarterly Canadian For-Hire Trucking Origin/Destination Survey recently underwent a major redesign in order to better satisfy the clients' needs. The redesigned survey provides annual estimates of both local and long-distance commodity transportation by large (annual revenues above $1 million) trucking companies. It employs a four-stage design, where carriers are selected at the first stage and a period of time is selected at the second stage. At the third stage, a sample of shipping documents is selected from each sampled carrier via personal, onsite visits, while at the fourth stage, a sample of shipments is selected from each shipping document. The redesigned survey better meets the clients' needs by improving the survey coverage and increasing the quality of the estimates through a larger sample size and a better methodology (more efficient sample design, automation of the coding, edit and imputation processes, use of more cost-efficient collection methods). The emphasis of the presentation will be put on the methodological challenges that were met in the development of this redesigned survey.

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