Results 11 to 20 of about 300,033 (304)
Impact of highway geometry and posted speed on operating speed at multi-lane highways in Egypt [PDF]
Journal of Advanced Research, 2013 The paper presents an analysis of roadway factors and posted speed limits that affect the operating speed at multi-lane highways in Egypt. Field data on multi-lane highways in Egypt are used in this investigation. The analysis considers two categories of
Ahmed M. Semeida
doaj +4 more sources
Operating Vehicles’ Speed Prediction Models [PDF]
Promet (Zagreb)Vehicle speed is one of the main factors that influence the occurrence and severity of the consequences of road traffic accidents. Operating speed can be defined, among other things, as the actual speed at which the largest number of road users drive in ...
Juraj Leonard VERTLBERG +3 more
doaj +3 more sources
Estimating Percentile Speeds from Maximum Operating Speed Frontier [PDF]
Transportation Research Record: Journal of the Transportation Research Board, 2014 Most operating speed studies have focused on modeling a specific percentile speed, most notably the 85th, as a function of the road geometrics. This method has resulted in some drawbacks, such as the loss of information due to speed data aggregation, the inability to capture speed dispersion, and few references about the effects of the driving culture ...
António Lobo +2 more
openaire +4 more sources
Estimating operating speed for county road segments – Evidence from Italy
International Journal of Transportation Science and Technology, 2023 Vehicle operating speed is a crucial factor for road safety, as it strictly affects occurrence and severity of crashes. Usually, 85th percentile of the operating speed distributions (i.e., V85) in free-flow traffic condition is widely accepted as a base ...
Valentina Martinelli +4 more
doaj +3 more sources
The speed-accuracy operating characteristic [PDF]
Acta Psychologica, 1969 Abstract An analysis of the relationship between speed and accuracy of performance under a wide variety of task conditions reveals a linear relationship between log odds in favor of a correct response and reaction time. This result is consistent with the conceptual logic of the statistical decision model of choice reaction time and suggests the ...
Pew, Richard W.
openaire +4 more sources
Determination of Applicable Adjacent Horizontal Curve Radii Using Operating Speed [PDF]
Promet (Zagreb), 2019 Design of curves and their adjacent elements presents the greatest safety problem on rural two-lane roads. The use of the existing alignment consistency safety criteria (design, operating speed, and driving dynamic consistency) could have some ...
Dražen Cvitanić, Biljana Maljković
doaj +3 more sources
Option of operating speed for vessels under low-carbon economy [PDF]
Journal of Industrial Engineering and Management, 2013 Purpose: To find out ships' optimum operating speed under low-carbon economy. Approach: First, it analyzes the relations between ship’s carbon emission and the operating speed, gets the optimum speed under which the entire fleet emit minimum carbon, then
Gang Li, Huan Xu, Wei Liu
doaj +5 more sources
Key Factors of the Initiation and Development of Polygonal Wear in the Wheels of a High-Speed Train
Applied Sciences, 2020 The polygonal wear of train wheels occurs commonly in rail transport and increases the wheel–rail interaction force dramatically and has a bad effect on the safety and comfort of the train. The mechanism of polygonal wear needs to be studied.
Yue Wu +4 more
doaj +1 more source
OPERATIONAL AND ENERGY PERFORMANCE OF 250 kW DOUBLE WHEELED VERSUS RUBBER HALF-TRACKED TRACTORS IN THE SOYBEAN SOWING [PDF]
Engenharia Agrícola, 2020 The technological innovation in agriculture seeks to improve the performance of mechanized assemblies and, currently, rubber half-tracks are a valuable solution for agricultural tractors, combining traction performance and less soil compaction.
Lauro S. Neto +4 more
doaj +1 more source
The influence of wearout clutch facings on operating speed electro-pneumatic clutch actuator
Trudy Odesskogo Politehničeskogo Universiteta, 2014 The paper is dedicated to the study of essential characteristics of electro-pneumatic clutch actuator during operation. Since the control of a clutch actuator must ensure the sustainability of all transmission service life, it is actual to determine the
О. О Ярита
doaj +5 more sources