Design Guidance for Intersection Auxiliary Lanes

2014 ◽  
Author(s):  
Kay Fitzpatrick ◽  
Marcus A. Brewer ◽  
Paul Dorothy ◽  
Eun Sug Park ◽  
◽  
...  
Keyword(s):  
Auxiliary Lanes ◽  
Design Guidance

Design Guidance for Freeway Main-Line Ramp Terminals

2012 ◽  
Vol 2309 (1) ◽  
pp. 48-60 ◽  
Author(s):  
Darren J. Torbic ◽  
Jessica M. Hutton ◽  
Courtney D. Bokenkroger ◽  
Marcus A. Brewer
Keyword(s):  
Field Study ◽  
Driver Behavior ◽  
Main Line ◽  
Behavioral Study ◽  
Crash Analysis ◽  
Vehicle Performance ◽  
Green Book ◽  
Improved Design ◽  
Parallel Acceleration ◽  
Design Guidance

This paper presents the results of a study to develop improved design guidance for freeway main-line ramp terminals on the basis of modern driver behavior and vehicle performance capabilities. The primary steps included a crash analysis, an observational field study, and a driver behavioral study. This research reached several key conclusions, as follows. Vehicle merging speeds tend to be closer to freeway speeds at tapered acceleration lanes than at parallel acceleration lanes. The recommended minimum lengths for acceleration lanes presented in the 2004 edition of AASHTO's A Policy on Geometric Design of Highways and Streets (Green Book) are conservative and, under certain conditions, could be reduced by 15%. In a situation in which a significant volume of trucks uses an entrance ramp, an acceleration lane length that will better accommodate trucks can be derived by using speed–distance curves developed for a range of weight-to-power ratios. The recommended minimum lengths for deceleration lanes presented in the 2004 Green Book are conservative and do not account for deceleration in the freeway. Providing deceleration lanes longer than the minimum values given in the Green Book may promote casual deceleration by exiting drivers. Several potential changes for consideration in the next edition of the Green Book are recommended on the basis of the findings and conclusions of this research.

scholarly journals The influence of prior knowledge on experiment design guidance in a science inquiry context

2018 ◽  
Vol 40 (11) ◽  
pp. 1327-1344 ◽  
Author(s):  
Siswa A. N. van Riesen ◽  
Hannie Gijlers ◽  
Anjo Anjewierden ◽  
Ton de Jong
Keyword(s):  
Prior Knowledge ◽  
Science Inquiry ◽  
Experiment Design ◽  
Design Guidance

scholarly journals Design Guidance for Blast-Resistant Glazing

2015 ◽  
Vol 21 (3) ◽  
pp. 04015003 ◽  
Author(s):  
Hasitha D. Hidallana-Gamage ◽  
David P. Thambiratnam ◽  
Nimal J. Perera
Keyword(s):  
Design Guidance

Developments in Dutch FRP design guidance for FRP in infrastructure

2014 ◽  
Vol 102 (14) ◽  
pp. 2215-2222
Author(s):  
Liesbeth Tromp ◽  
Ane De Bore
Keyword(s):  
Design Guidance

Tsunami: scientific frontiers, mitigation, forecasting and policy implications

2006 ◽  
Vol 364 (1845) ◽  
pp. 1989-2007 ◽  
Author(s):  
E.N Bernard ◽  
H.O Mofjeld ◽  
V Titov ◽  
C.E Synolakis ◽  
F.I González
Keyword(s):  
Hazard Mitigation ◽  
Warning System ◽  
Early Warning Systems ◽  
Policy Implications ◽  
Warning Systems ◽  
Earth Observing System ◽  
Global Warning ◽  
Educational Programmes ◽  
Resilient Communities ◽  
Design Guidance

Tsunamis are an ever-present threat to lives and property along the coasts of most of the world's oceans. As the Sumatra tsunami of 26 December 2004 reminded the world, we must be more proactive in developing ways to reduce their impact on our global society. This article provides an overview of the state of knowledge of tsunamis, presents some challenges confronting advances in the field and identifies some promising frontiers leading to a global warning system. This overview is then used to develop guidelines for advancing the science of forecasting, hazard mitigation programmes and the development of public policy to realize a global system. Much of the information on mitigation and forecasting draws upon the development and accomplishments of a joint state/federal partnership that was forged to reduce tsunami hazards along US coastlines—the National Tsunami Hazard Mitigation Programme. By integrating hazard assessment, warning guidance and mitigation activities, the programme has created a roadmap and a set of tools to make communities more resilient to local and distant tsunamis. Among the tools are forecasting, educational programmes, early warning systems and design guidance for tsunami-resilient communities. Information on international cooperation is drawn from the Global Earth Observing System of Systems (GEOSS). GEOSS provides an international framework to assure international compatibility and interoperability for rapid exchange of data and information.

Navigating on the Information Highway

1994 ◽  
Vol 38 (4) ◽  
pp. 271-274 ◽  
Author(s):  
Arnold M. Lund
Keyword(s):  
Design Issues ◽  
Information Highway ◽  
Human Interface ◽  
Practical Design ◽  
Finite Set ◽  
Critical Problems ◽  
The Right ◽  
Time Frames ◽  
Theoretical Issues ◽  
Design Guidance

The “information highway” is being created now, and the design task is monumental. Some of the most critical problems in designing a navigation environment have never been addressed before, and developers are demanding that either we (as human interface designers) supply answers now or they will make up their own answers. There is too little time and there are too few resources to fully explore interesting theoretical issues, and yet the results of such exploration (if on the right topics) could be critically important. This paper will review some of the practical design issues that Ameritech has identified as being important in defining a navigation environment, and approaches we have taken to those design issues. These approaches have been shaped by a lack of design guidance in some areas, and a finite set of resources (especially time). The paper will also identify directions where research would be useful, and time frames during which the results will still be valuable.

Chip-level ESD simulation for fail detection and design guidance

2004 ◽  
Author(s):  
S. Druen ◽  
M. Streibl ◽  
F. Zangl ◽  
J. Schneider ◽  
U. Glaser ◽  
...  
Keyword(s):  
Design Guidance
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