Applying GPS Data to Understand Travel Behavior, Volume I: Background, Methods, and Tests (2014) / Chapter Skim
Currently Skimming:
Pages 99-116
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 99... ...
99 AirSage 1. Describe the primary and secondary markets for your data products (i.e., real-time traffic, transportation planning, etc.)
|
From page 100... ...
100 Productions A Productions table shows the number of people that departed from a specific Zone during a specific hour of the day for each hour of each day of the time frame for each of the Zones in the Study Area. Attractions An Attractions table shows the number of people that arrived in a specific Zone during a specific hour of the day for each hour of each day of the time frame for each of the Zones in the Study Area.
|
From page 101... ...
101 FastCache FastCache, as a part of an integrated marketing strategy, can drive greater consumer engagement. FastCache is the quickest, most affordable way to get unlimited location fixes for all your mobile opt-in subscribers any time, all the time.
|
From page 102... ...
102 traffic services. No single data source type can provide the accuracy, coverage or scalability that is required in the market today.
|
From page 103... ...
103 INRIX Historical Archive is a running archive of realtime speeds provided by INRIX for all TMCs in service at that time. Data provided on each segment for each time slice includes the Speed, Travel Time, and the Score.
|
From page 104... ...
104 INRIX Historical Archive INRIX Historical Archive is a running archive of RealTime speeds provided by INRIX for all TMCs in service at that time. Data provided on each segment for each time slice includes the Speed, Travel Time, and the Score.
|
From page 105... ...
105 applications. Many of the clients who use our navigation applications provide data back to Nokia.
|
From page 106... ...
106 updates are provided every two minutes. Accuracy for an individual TMC depends on the number of data sources the age of the data and the variability of traffic conditions.
|
From page 107... ...
107 • Before and after studies -- changes to road infrastructure, construction • Performance analysis of intersections • Traffic model calibration Geo-Marketing • Site location • Advertising display location • Demographic travel patterns Logistics • Fleet management (See also Navigation below) • Supply chain optimization (See also Navigation below)
|
From page 108... ...
108 crowd-sourced GPS speed measurements from devices and smartphone applications as well as third-party information on road closures and accidents. Industry standards for data transmission are used and the traffic information can be provided to public and private entities using standard protocols.
|
From page 109... ...
109 may also be possible though it was created to specifically improve route and ETA calculation. This product links directly to the TomTom MultiNet map database.
|
From page 110... ...
110 by aggregating billions of GPS measurements to offer precise speeds for specific times of day and days of the week. With Speed Profiles routes adapt dynamically to the time of departure and incorporate local knowledge.
|
From page 111... ...
111 Real-Time Output Quality: • TUV Certified • Regular QKZ tested (Enterprise Traffic) • HD Flow tested by methodology developed by the Texas Transportation Institute c)
|
From page 112... ...
112 unique serial numbers, potentially allowing (re-) identification of the user are destroyed either immediately or within 20 minutes after their device or car has been shut down.
|
From page 113... ...
113 the process of investigating its critical attributes required for generating useful traffic information. The preliminary findings indicate the needs of adopting theory developed in the linear dynamic system to make this data useful.
|
From page 114... ...
114 purpose in every 15-minute interval for each day in the week and by season. Its basic attributes include season, day of week, time of day, TMC segment ID, and speed.
|
From page 115... ...
115 navigation. Therefore, tremendous effort has been spent to refine traffic event location by a sophisticated map-matching algorithm.
|
From page 116... ...
116 DOT speed: Generally, it is only available for the urban Interstate freeway system. Arterial may not be covered.
|
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.