Skip to main content

Key Transportation Indicators Summary of a Workshop (2002) / Chapter Skim
Currently Skimming:

3 Mobility Indicators
Pages 16-21

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 16...
... For purposes of this subgroup, the following working definition of mobility was used to guide the discussion: Mobiligr: MolDility refers to the time and costs requiredtfor travel. MolDility is higher when average travel times, variations in travel times, and travel costs are low.
Read the entire page →
From page 17...
... A "travel temperature" index developed at Georgia Tech, which uses travel time contours to give up-to-date information on expected travel times, received international attention because the traveling public easily understood it. Information such as this is likely to be well received by transportation system users.
Read the entire page →
From page 18...
... For example, a recent study of travel time variability in California by the Transportation Research Board estimated a value of $12.60 per hour of standard deviation in travel time, compared with a value of travel time of $5.30 per hour for normal travel time. This indicates that travelers place a much greater value on travel time reliability.]
Read the entire page →
From page 19...
... The most frequently cited mobility measures fall into six major areas: congestion related (e.g., level of service, volume/capacity, and delay) ; trip time; amount of travel (vehicle miles traveled, vehicle hours traveled)
Read the entire page →
From page 20...
... Anthony Smith, University of Pennsylvania, suggested that a new BTS web site could be developed that would include maps of various transportation measures for different areas of the country, updated on a regular basis. Since it is difficult to identify the potential users of transportation data, this would be a useful way to make a variety of data available.
Read the entire page →
From page 21...
... The subgroup felt that travel time, reliability, and economic costs should be incorporated into measures of mobility.
Read the entire page →

Key Terms

  • mobility indicators
  • travel times
  • performance characteristics
  • time variability
  • mobility index

  • transportation institute
  • transportation indicators
  • texas transportation
  • mobility measures
  • variability due

  • local officials
  • traveling public
  • cited mobility
  • hours traveled
  • strong sentiment

  • subgroup concluded
  • time measures
  • miles traveled
  • transit performance
  • trip time

  • greene noted
  • specific trip
  • georgia tech
  • initial candidates
  • including physical

  • hour conditions
  • international attention
  • consumer expenditure
  • time savings
  • typical travel


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.