Long-Distance and Rural Travel Transferable Parameters for Statewide Travel Forecasting Models (2012) / Chapter Skim
Currently Skimming:
Pages 68-74
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 68... ...
68 The discussion on Trip Distribution will focus largely on the process of developing friction factor gamma functions and trip length frequency distribution curves from travel survey data, how a transferable set of friction factors was developed for this study, and provision of transferable friction factor gamma functions along with guidance on which to use and when. Benchmark statistics will also be provided on average trip lengths by purpose for rural and long-distance travel.
|
From page 69... ...
trip Distribution parameters and Benchmark Statistics 69 Average Trip Length By Purpose (Minutes or Milesa) Business Tourist Other Total Minutes Total Miles Arizona (Passenger)
|
From page 70... ...
70 Long-Distance and rural travel transferable parameters for Statewide travel Forecasting Models of this Guidebook. Statistics are provided for all four surveys as well as the sum of all by longdistance, rural, and urban trip-making categories.
|
From page 71... ...
trip Distribution parameters and Benchmark Statistics 71 Figure 5.2. Trip length frequency for long-distance pleasure trips.
|
From page 72... ...
72 Long-Distance and rural travel transferable parameters for Statewide travel Forecasting Models functions reflect reported trip lengths, without any smoothing or confirmation against network skims. Therefore, these gamma functions should only serve as potential starting points for Gravity Model calibration.
|
From page 73... ...
trip Distribution parameters and Benchmark Statistics 73 would otherwise be calculated as "long-distance," the occurrence of these trips is purely coincidental because there was no sampling strategy for long-distance trips in NHTS 2009. Graphs are scaled to match by purpose, meaning that curves were depicted with trips limited to 500 million along the y-axis and 90 minutes in length along the x-axis.
|
From page 74... ...
74 Long-Distance and rural travel transferable parameters for Statewide travel Forecasting Models Urban Size Auto Mean Transit Mean Nonmotorized Mean All Modes Mean Home-Based Work Trips 1 million or more with subway or rail 29 53 18 32 1 million or more without subway or rail 25 64 19 26 Between 500,000 and 1 million 22 46 17 22 Between 200,000 and 500,000 21 63 18 22 Less than 200,000 20 33 18 20 Not in an urbanized area (Rural/Small Urban) 24 58 11 24 All trips 24 55 16 25 Home-Based Nonwork Trips 1 million or more with subway or rail 18 48 16 20 1 million or more without subway or rail 17 48 15 18 Between 500,000 and 1 million 15 46 16 16 Between 200,000 and 500,000 16 50 15 16 Less than 200,000 17 32 15 17 Not in an urbanized area (Rural/Small Urban)
|
Key Terms
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.