Human Factors Guidelines for Road Systems: Second Edition (2012) / Chapter Skim
Currently Skimming:
Pages 10-19
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 10... ...
3.1 Introduction Some people have said the primary decision-maker in the highway transportation system is the road user. But this statement is just not true.
|
From page 11... ...
safely. Traffic engineers cannot be expected to solve design problems with traffic engineering fixes.
|
From page 12... ...
• Each end of a 1-mi section of two-lane road in a suburban area had been improved to a four-lane divided highway. The remaining two-lane road had very bad vertical curvature and a cross section with very narrow shoulders; thus the two-lane road environment was very different from either the upstream or downstream road sections.
|
From page 13... ...
Some human factor characteristics regarding roadway users are available to help implement preferred design and control solutions. The following are some of those found in the research literature: • Drivers experience difficulty at intersections in estimating gap size and speed of approaching vehicles (Staplin, Lococo, & Byington, 1998)
|
From page 14... ...
to lane selection; and control relates to selection of vehicle speed, level of braking, and steering. The information road users seek varies according to the situation -- sometimes complex and sometimes simple.
|
From page 15... ...
most to least important. The priority of the color code was from left to right with dark green as priority one.
|
From page 16... ...
3-7 HFG FINDING INFORMATION LIKE A ROAD USER Version 2.0 1- Near Gordon Street 1 - Near Gordon Street 1t - Near Gordon Street Figure 3-5. Example 1, View 1.
|
From page 17... ...
HFG FINDING INFORMATION LIKE A ROAD USER Version 2.0 3-8 4 - Front of Shrevewood School 4t - Front of Shrevewood School 4 - Front of Shrevewood School Figure 3-6. Example 2, View 4.
|
From page 18... ...
information in small time and space increments; they must learn from road users' experiences. Identifying what road users consider important is not easy.
|
From page 19... ...
Self-explaining designs create road categories that are recognizable by users and are appropriate for the following: • Flow requirements (i.e., small to large volumes) • Speed functions (i.e., slow to high speed)
|
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.