Results 21 to 30 of about 10,023 (102)

Analysis of passing sight distance using first-order reliability method [PDF]

, 2022
Current passing sight distance requirements for two lane highways by the American Association of State Highway and Transportation Officials are based on field studies conducted between 1938 and 1941 which use deterministic values for its design variables such as passing sight distance, speed of the passing vehicle, speed differential between the passed
openaire   +1 more source

Analyses of maximum-speed path definition at single-lane roundabouts

Journal of Traffic and Transportation Engineering (English ed. Online), 2018
The process of designing roundabouts is an iterative process through which, in several checks, the design elements of a roundabout get optimized. Existing regulations for roundabouts involve swept path analyses, sight distance analyses and speed analyses
Sanja Šurdonja, Vesna Dragčević, Aleksandra Deluka-Tibljaš   +2 more
doaj   +1 more source

A proposed overtaking model for Egyptian two-lane two-way roads

IATSS Research
Overtaking is one of the most complex maneuvers on the two-lane two-way (TLTW) roads, where the follower vehicles use the opposing lane to bypass the leader slower vehicles.
Ahmed Shoaeb, Sherif M. El-Badawy, Sayed Shawly, Usama Elrawy Shahdah   +3 more
doaj   +1 more source

Safety and user perceptions of bike turnouts

Journal of Cycling and Micromobility Research
At Mount Diablo State Park in Northern California, a local coalition of cyclists known as the Mount Diablo Cyclists observed an overrepresentation of driver-overtaking-cyclist collisions on curves with limited sight distance.
Helena Breuer, Hisham Jashami, David Hurwitz   +2 more
doaj   +1 more source

Low-metallicity Gas on the Outskirts of the Local Group: The Circumgalactic Medium of Sextans B

The Astrophysical Journal
We present a UV absorption-line analysis of the circumgalactic medium (CGM) of Sextans B, a dwarf irregular galaxy at 1.3 Mpc distance on the outer frontier of the Local Group (LG). Using Hubble Space Telescope Cosmic Origins Spectrograph spectroscopy of
Andrew J. Fox, Sapna Mishra, Frances H. Cashman, David M. French, Philipp Richter, Rongmon Bordoloi, Nicolas Lehner, Jason Tumlinson, Sanchayeeta Borthakur   +8 more
doaj   +1 more source

Parameter resolution of near-Earth asteroids using LISA

Astronomy & Astrophysics
Context. The detection and tracking of near-Earth asteroids (NEAs) is critical for planetary defense and for advancing our understanding of the small-body population in the Solar System.
Marques Sara, Jennrich Oliver
doaj   +1 more source

Is the nitrogen-rich source PN K4-47 a true planetary nebula?

Astronomy & Astrophysics
Context. The object K4-47 is a young planetary nebula that exhibits low-ionisation structures in the form of two ‘lobes’. The unusual chemistry of the nebula has raised questions about whether K4-47 is a true planetary nebula or if the origins are more ...
Steinmetz T., Kamiński T., Jones D., Hajduk M., Gonçalves D. R., Akras S.   +5 more
doaj   +1 more source

The Truncated Circumgalactic Medium of the Large Magellanic Cloud

The Astrophysical Journal Letters
The Large Magellanic Cloud (LMC) is the nearest massive galaxy to the Milky Way (MW). Its circumgalactic medium (CGM) is complex and multiphase, containing both stripped H i structures like the Magellanic Stream and Bridge and a diffuse warm corona seen ...
Sapna Mishra, Andrew J. Fox, Dhanesh Krishnarao, Scott Lucchini, Elena D’Onghia, Frances H. Cashman, Kathleen A. Barger, Nicolas Lehner, Jason Tumlinson   +8 more
doaj   +1 more source

You Shall Not Pass: Warning Drivers of Unsafe Overtaking Maneuvers on Country Roads by Predicting Safe Sight Distance

Proceedings of the 2025 CHI Conference on Human Factors in Computing Systems
23 pages, 27 figures, 2 tables, ACM CHI ...
Adrian Bauske, Arthur Fleig
openaire   +2 more sources

TRA-960: FIELD EVALUATION OF PASSING SIGHT DISTANCE PARAMETERS

, 2016
Drivers require a sufficient distance on a two-lane highway to ensure that they can safely maneuver past an impeding vehicle. The passing behaviour of drivers is an important element of safe passing maneuvers. In this paper, field studies were conducted in different countries to determine the passing behaviour of drivers.
Hassein, Udai, Easa, Said
openaire   +1 more source