Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter.
Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.
Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.
OCR for page 49
Procedures and Measures for Further Research 49
Table 1. Procedures and measures for further research.
Category Original Item
reference
Items beyond scope of D-11 GPS surveys
project D-12 Internet surveys
I-8 SP data
Items originally D-2 Who should be surveyed?
identified and not D-9 Times of day for contacts
researched E-6 Retention of data on incomplete households
E-7 Cross checks in data collection and data review
E-8 Days and periods to avoid data collection
I-3 Collection of in-home activities
I-4 Ordering of questions
I-6 Instrument design
I-7 Multitasking of activities
S-1 Sample size
S-2 Sizes and procedures for surveying augment samples
S-3 Collecting augment samples
S-4 Stratification options for samples
S-5 Specification of sampling error requirements
S-6 Development of default variances
P-1 Focus groups
P-5 Reporting of pretests and pilot surveys
Q-4 Sampling error
Other items identified Cell phones
during research Incentives
Personalized interview techniques
Geocoding methods
Impacts of the national "do not call" registry
Initial contacts
Refusal and non-contact conversions
Effect of interview mode on recruitment and non-response rates
Unknown eligibility rates
Data archiving in transportation
4.1.2 D-12: Internet Surveys
Internet surveys are similar to GPS surveys in that it is a data collection mechanism that is
emerging at the present and has yet to undergo extensive field testing. Nevertheless, like GPS sur-
veys, it is likely to be a technique that will evolve rapidly and, if successful, be incorporated more
and more frequently as a potential means for a household to provide the data for a household
travel survey. Again, it is an experimental procedure that is not yet in the mainstream although
several current surveys are working to offer Internet as an alternative means of response for a
number of households.
Again, there is enormous potential for defining standardized procedures and providing guide-
lines. These may address such issues of how to provide access to websites, the type of graphics and
other materials to be provided, building in cross checks on data and cross-referencing travel of
other household members, encryption, and a variety of ethical issues that will arise with Internet
surveys. As with GPS, however, this area is considered too under-developed for this project. Stan-
dardized procedures should be considered during the next 2 or 3 years and may, again, require a
number of comparative studies in order to determine what consistent practice should be.
4.1.3 I-8: SP Data
Many recent travel surveys have included collection of stated-choice data, more commonly
referred to as "stated-preference" or SP data. Assuming that such data will become more and more
a standard element of many surveys, standardized procedures and guidelines are almost certainly
