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Journal articles on the topic 'Safety speed'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Porter, Richard J., Eric T. Donnell, and John M. Mason. "Geometric Design, Speed, and Safety." Transportation Research Record: Journal of the Transportation Research Board 2309, no. 1 (2012): 39–47. http://dx.doi.org/10.3141/2309-05.

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A performance-based approach to the interaction of geometric design, speed, and safety is considered given the availability of two key documents: the Highway Safety Manual and Modeling Operating Speed: Synthesis Report. A historical look at the concept of design speed shows that although the definition of design speed has changed on more than one occasion, the same basic philosophy that related design speed to a safe speed is still reflected in current policy in supplemental guidance related to the selection of design speed. A conservative approach to establishing design criteria, used to addr

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2

Lawrence, Brendan, Brian Fildes, Peter Cairney, Stephanie Davy, and Amir Sobhani. "Evaluation of Raised Safety Platforms (RSP) On-Road Safety Performance." Sustainability 14, no. 1 (2021): 138. http://dx.doi.org/10.3390/su14010138.

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A Raised Safety Platform (RSP) is a relatively new physical road safety intervention at major intersections. They aim to enhance road user safety by reducing vehicle speeds at intersections using an acute vertical deflection to the vehicle path. This study measured the change in speed at selected high-volume intersections treated with an RSP. It was a 12-month study based on a controlled before-and-after-treatment design, with speed and other measures assessed at six treated and five control intersections. Statistically significant and meaningful reductions in speeds were observed given the tr

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Hauer, Ezra. "Speed and Safety." Transportation Research Record: Journal of the Transportation Research Board 2103, no. 1 (2009): 10–17. http://dx.doi.org/10.3141/2103-02.

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4

Findlay, G. P. "Safety not speed." Anaesthesia 50, no. 10 (1995): 918. http://dx.doi.org/10.1111/j.1365-2044.1995.tb05880.x.

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5

Elvik, Rune. "Speed and Road Safety." Transportation Research Record: Journal of the Transportation Research Board 1908, no. 1 (2005): 59–69. http://dx.doi.org/10.1177/0361198105190800108.

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This paper presents a study evaluating the power model of the relationship between speed and road safety. The power model states that a given relative change in the mean speed of traffic is associated with a relative change in the number of accidents or accident victims by means of a power function. An extensive review of relevant literature has been made, and evidence from 98 studies containing 460 estimates of the relationship between changes in speed and changes in the number of accidents or accident victims has been synthesized by means of meta-analysis. The results are broadly supportive

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Karnes, Edward W., S. David Leonard, and Herbert C. Newbold. "Safety Perceptions and Information Sources for ATVs." Proceedings of the Human Factors Society Annual Meeting 32, no. 15 (1988): 938–42. http://dx.doi.org/10.1518/107118188786761794.

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Safety issues concerning all-terrain vehicles (ATVs) have become important for human factors professionals, becasuse of the need to reduce the accidents and injuries associated with their use. Human factors experts have also been called upon to testify in legal suits occasioned by some accidents. This paper discusses some of the problems associated with the safety of ATVs and presents data concerning riders and observers ability to estimate their speed. Speed estimates are lower than actual speeds at low speeds and higher than actual speeds at high speeds. It is concluded that information abou

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7

Thornton, Matthew, and Richard W. Lyles. "Freeway Speed Zones: Safety and Compliance Issues." Transportation Research Record: Journal of the Transportation Research Board 1560, no. 1 (1996): 65–72. http://dx.doi.org/10.1177/0361198196156000110.

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The effectiveness and appropriateness of establishing speed limits on freeways and the spatial extent of the zones were studied. Of particular interest were 55-mph (88-km/hr) speed zones that exist in the transition between urban and rural areas (determined according to urban area boundaries). Three types of freeway segments (urban-55, fringe-55, and rural-65) were analyzed, and although the study was of comparatively small scale, the results generally showed that higher speeds do not lead to more numerous or serious accidents. Moreover, compliance with speed limits is not necessarily a good m

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Sun, Danyang, Karim El-Basyouny, Shewkar Ibrahim, and Amy M. Kim. "Are school zones effective in reducing speeds and improving safety?" Canadian Journal of Civil Engineering 45, no. 12 (2018): 1084–92. http://dx.doi.org/10.1139/cjce-2018-0060.

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This paper describes a study undertaken to assess the speed and safety effects of reducing speed limits from 50 to 30 km/h in school zones. Mean speeds and 85th percentile speeds were reduced by 12.2 and 11.6 km/h, respectively. Speed variation was also reduced, and the speed cumulative distributions shifted to the left, indicating further reductions for all speed ranges. The safety evaluation results revealed fatal and injury collisions were significantly reduced by 45.3% and injuries to vulnerable road users were reduced by 55.3%. In fact, for every 1 km/h reduction in mean speed, fatal and

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Ederer, David J., Michael O. Rodgers, Michael P. Hunter, and Kari E. Watkins. "Case Study using Probe Vehicle Speeds to Assess Roadway Safety in Georgia." Transportation Research Record: Journal of the Transportation Research Board 2674, no. 11 (2020): 554–62. http://dx.doi.org/10.1177/0361198120948858.

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Speed is a primary risk factor for road crashes and injuries. Previous research has attempted to ascertain the relationship between individual vehicle speeds, aggregated speeds, and crash frequency on roadways. Although there is a large body of research linking vehicle speeds to safety outcomes, there is not a widely applied performance metric for safety based on regularly reported speeds. With the increasingly widespread availability of probe vehicle speed data, there is an opportunity to develop network-level safety performance metrics. This analysis examined the relationship between percent

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10

Mohd Noor Azmi, A. E., and B. D. Daniel. "Campus walkability: enhancing pedestrian safety through installation of raised crosswalks." IOP Conference Series: Earth and Environmental Science 1347, no. 1 (2024): 012046. http://dx.doi.org/10.1088/1755-1315/1347/1/012046.

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Abstract Walking is one of the most common sustainable modes of transportation in university campuses. To ensure its sustainability, pedestrian facilities that are safe, comfortable and reliable must be adequately provided. Various traffic calming measures have been introduced to enhance the safety of pedestrians. In Universiti Tun Hussein Onn Malaysia (UTHM), 6 raised crosswalks (RCW) have been installed along Persiaran Tun Ghafar Baba. This study aimed to investigate the impact of RCWs on vehicular speed reduction. Speed data were collected at each RCW. Vehicle speeds were recorded before, a

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11

Olszewski, Piotr, Witold Czajewski, Paweł Dąbkowski, and Piotr Szagała. "Safety assessment of pedestrian crossing solutions." Budownictwo i Architektura 13, no. 4 (2014): 177–84. http://dx.doi.org/10.35784/bud-arch.1758.

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Paper presents preliminary findings from the research project Mobis which is aimed at developing a method of assessing safety of pedestrian road crossings by using video image analysis. Pedestrian and vehicle traffic has been recorded at a selected crossing site in Warsaw for 2 months, before and after installation of safety measures which included active signage and speed humps. Speeds of approaching vehicles were measured and vehicle-pedestrian conflict situations identified by using video analysis. Results indicate that both SignFlash active signage and speed humps reduce mean vehicle speed

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12

Kumar, Sudhir, and D. L. Prasanna Rao. "Overturning and Equilibrium Speeds and Speed Safety Margin—A Sensitivity Analysis." Journal of Engineering for Industry 107, no. 4 (1985): 399–401. http://dx.doi.org/10.1115/1.3186017.

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Two critical speeds viz., the equilibrium speed and the overturning speed, are recognized to play an important role in defining operational and safety characteristics of railroads. An analysis of the sensitivity of the critical speeds to important operating parameters is presented. Two parameters called the ‘Speed Safety Margin’ and the ‘Speed Factor’ are defined to assist in evaluating the severity of a set of operating conditions. It is concluded that degree of curve has the most drastic effect on safety followed, in decreasing order of effect, by height of CG, superelevation, and track gage

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13

La, Jennifer, and Dan Degnan. "Don’t sacrifice safety for speed." Pharmacy Today 24, no. 10 (2018): 32. http://dx.doi.org/10.1016/j.ptdy.2018.09.020.

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14

Bitigova, Dayana, Dinar Bekzhanov, and Saule Bekzhanova. "ENSURING TRAIN SAFETY ON HIGH-SPEED RAIL-HIGHWAY." Вестник КазАТК 118, no. 3 (2021): 28–33. http://dx.doi.org/10.52167/1609-1817-2021-118-3-28-33.

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Modern high-speed trains in normal operation develop speeds of up to 350-400 km / h, and in tests they can even accelerate to 560-580 km/h. Due to the speed of service and high speed of movement, they seriously compete with other modes of transport, while maintaining such a property of all trains as low cost of transportation with a large volume of passenger traffic. For the first time the regular movement of high-speed trains began in 1964 in Japan under the Shinkansen project. In 1981, VSNT trains began to run in France, and soon most of Western Europe, including even the island of Great Bri

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Bitigova, Dayana, Dinar Bekzhanov, and Saule Bekzhanova. "ENSURING TRAIN SAFETY ON HIGH-SPEED RAIL-HIGHWAY." Вестник КазАТК 118, no. 3 (2021): 28–33. http://dx.doi.org/10.52167/1609-1817-2021-118-3-28-33.

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Modern high-speed trains in normal operation develop speeds of up to 350-400 km / h, and in tests they can even accelerate to 560-580 km/h. Due to the speed of service and high speed of movement, they seriously compete with other modes of transport, while maintaining such a property of all trains as low cost of transportation with a large volume of passenger traffic. For the first time the regular movement of high-speed trains began in 1964 in Japan under the Shinkansen project. In 1981, VSNT trains began to run in France, and soon most of Western Europe, including even the island of Great Bri

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16

Peltola, Harri. "Seasonally Changing Speed Limits: Effects on Speeds and Accidents." Transportation Research Record: Journal of the Transportation Research Board 1734, no. 1 (2000): 46–51. http://dx.doi.org/10.3141/1734-07.

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Summarized are the results of studies that examined the effects of speed limits that were changed on a seasonal basis on Finnish main roads. The first of these studies was an experimental study (1987–1989) in which speed limits were changed according to time of year. A follow-up study was then conducted on the resulting and greatly expanded use of lower speed limits during the winters of 1989 to 1996. Reasons for lowering wintertime speed limits involved primarily adverse road and driving conditions, including slippery roads, the use of studded tires, frequent heavy rain or snowfall, and darkn

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17

Sultana, Tahmina, and Yasser Hassan. "Impact of Mixed-Vehicle Environment on Speed Disparity as a Measure of Safety on Horizontal Curves." World Electric Vehicle Journal 15, no. 10 (2024): 456. http://dx.doi.org/10.3390/wevj15100456.

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Due to the transition of vehicle fleets from conventional driver-operated vehicles (DVs) to connected vehicles (CVs) and/or automated vehicles (AVs), vehicles with different technologies will soon operate on the same roads in a mixed-vehicle environment. Although a major goal of vehicle connectivity and automation is to improve traffic safety, negative safety impacts may persist in the mixed-vehicle environment. Speed disparity measures have been shown in the literature to be related to safety performance. Therefore, speed disparity measures are derived from the expected speed distributions of

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18

Liu, Xing Wang. "Road Curve Speed Control Engineering Study." Applied Mechanics and Materials 66-68 (July 2011): 793–97. http://dx.doi.org/10.4028/www.scientific.net/amm.66-68.793.

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Horizontal curves have been recognised as a significant safety issue for many years, a more important factor than road width, vertical clearance or sight distance. This study investigates the issue of speed selection through curves from several different perspectives. The relationship between safety and curve speed in SiChuan provinces was analysed using data from the local crash database. A sample of curves was selected and surveyed. Following this, acurve treatments for controlling Curve speed for different vehicles was developed based on many factors that has influence on safey.

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19

Jae-pil, Moon, and Lee Suk-ki. "STUDY ON EVALUATION OF SAFETY EFFECT OF VARIABLE MESSAGE SIGN." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 4, no. 10 (2017): 70–75. https://doi.org/10.5281/zenodo.1039062.

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Speeding is generally one of the major causes of the death or serious injury occurred at road construction section. For such reason, road manager has the concern on improving the safety of the road workers and drivers at the road construction section under unfavorable environment. In this study, mobile variable road electronic display was developed as part of the measure to encourage the drivers to comply with the speed regulation and evaluation of safety effect was conducted on road. The criteria for safety effect applied to this study weremean speed and compliance of the speed limit by the d

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20

Fitzpatrick, Kay, Brian Shamburger, and Dan Fambro. "Design Speed, Operating Speed, and Posted Speed Survey." Transportation Research Record: Journal of the Transportation Research Board 1523, no. 1 (1996): 55–60. http://dx.doi.org/10.1177/0361198196152300107.

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At some locations, the posted speed limit, based on 85th percentile operating speed, exceeds the roadway's design speed. This situation is a result of the fact that criteria used in highway design incorporate a significant factor of safety, that is, roadways are designed for near worst-case conditions. When this situation occurs, however, liability concerns can arise although drivers can safely exceed the design speed. A mail-out survey for state, city, and county transportation departments was conducted to document concerns and difficulties the engineering profession is experiencing with the

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21

Shwaly, Sayed A., Amal El-Ayaat, and Reem Osman. "Assessing Multifaceted Effects of Speed Humps and Bumps: Travel Time, Safety, and Environmental Considerations." Civil Engineering Journal 10, no. 7 (2024): 2177–94. http://dx.doi.org/10.28991/cej-2024-010-07-07.

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This study focuses on investigating the significant impacts of speed breakers on various parameters, including travel time delays, vehicle speeds, fuel consumption, pavement maintenance costs, and vehicular exhaust emissions. Field data was collected and analyzed to assess the effects of different types of traffic calming measures on these parameters. The findings provide valuable insights into the implications of speed breakers on road safety, environmental pollution, and overall road infrastructure management. The results reveal that the implementation of speed humps, speed bumps, and triple

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22

Chang, Kevin N., Matthew Nolan, and Nancy L. Nihan. "Measuring Neighborhood Traffic Safety Benefits by Using Real-Time Driver Feedback Technology." Transportation Research Record: Journal of the Transportation Research Board 1922, no. 1 (2005): 44–51. http://dx.doi.org/10.1177/0361198105192200107.

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Local jurisdictions frequently respond to public concerns about speeding on neighborhood streets. When a speed study confirms that a significant percentage of vehicles are exceeding the posted speed limit, a traffic engineer carefully reviews the conditions to determine if additional safety measures need to be implemented. Preserving roadway safety for the motorized and the nonmotorized public alike who share the roadway is essential. Each jurisdiction is likely to use any number of solutions from its traffic safety toolbox. Additional signing, mobile radar speed display units, neighborhood sp

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23

Liu, Dongrun, Tiantian Wang, Xifeng Liang, Shi Meng, Mu Zhong, and Zhaijun Lu. "High-speed train overturning safety under varying wind speed conditions." Journal of Wind Engineering and Industrial Aerodynamics 198 (March 2020): 104111. http://dx.doi.org/10.1016/j.jweia.2020.104111.

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24

KANG, Jeong-Gyu. "CHANGES OF SPEED AND SAFETY BY AUTOMATED SPEED ENFORCEMENT SYSTEMS." IATSS Research 26, no. 2 (2002): 38–44. http://dx.doi.org/10.1016/s0386-1112(14)60041-8.

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25

Wilmot, Chester G., and Mandar Khanal. "Effect of Speed limits on speed and safety: A review." Transport Reviews 19, no. 4 (1999): 315–29. http://dx.doi.org/10.1080/014416499295420.

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26

Mr B Ramakrishna, Ch Phani Satwik kmar, P Omsai, R Anudeep singh, and S Arjun. "Dynamic Speed Management Enhancing Traffic Safety with Adaptive Speed Breaker." International Research Journal on Advanced Engineering Hub (IRJAEH) 3, no. 06 (2025): 2928–33. https://doi.org/10.47392/irjaeh.2025.0433.

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Dynamic Speed Management (DSM) with adaptive speed breakers offers an innovative traffic solution. Unlike static bumps, these breakers use real-time data from advanced sensors (like IR for velocity) to respond dynamically. They remain retracted for vehicles within speed limits, ensuring smooth travel, but activate only for speeding vehicles to enforce safer driving. Machine learning models, such as YOLOv8, identify emergency vehicles, deactivating the breakers for their unobstructed passage. This selective system significantly enhances road safety by reducing accidents caused by abrupt braking

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Perco, Paolo. "Comparison between Powered Two-Wheeler and Passenger Car Free-Flow Speeds in Urban Areas." Transportation Research Record: Journal of the Transportation Research Board 2074, no. 1 (2008): 77–84. http://dx.doi.org/10.3141/2074-10.

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Accident data indicate that motorcyclists are a particularly vulnerable group of road users because they run a higher risk of being injured or killed in an accident than passenger car drivers. One of the countermeasures that can improve traffic safety for motorcyclists is an increase in awareness and knowledge about powered two-wheelers (PTWs) in the planning, construction, operation, and maintenance of new and existing roads. Road design standards and policies that regulate design process and safety evaluations are usually based on passenger car characteristics only. In particular, the passen

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Krantikumar, Mhetre, Bhise Rutika, Akim Umesh, Raut Rushikesh, and Kharat Ketan. "Review on Spot Speed Study." Journal of Engineering Analysis and Design 4, no. 1 (2022): 1–5. https://doi.org/10.5281/zenodo.6622295.

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Spot speed studies plays a vital role in measuring various variables and factors which are used in design and for analyzing highway system. Measured speeds are used for geometric design, safety measures, speed trends, capacity analyses and assessment. But to carry out the spot speed study it is important to analyze the methods which are cost effective where time is constant. This paper gives the review on literature gap in spot speed studies.

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29

Gupta, Nischal, Megat Usamah Megat Johari, Hisham Jashami, and Peter Savolainen. "How is traffic safety affected by changes in traffic speeds following speed limit increases? An evaluation with probe vehicle data." Traffic Safety Research 3 (November 6, 2022): 000017. http://dx.doi.org/10.55329/xsjw3584.

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Maximum speed limits continue to be an important policy issue. Research has consistently shown speeds to increase following speed limit increases. These increases have also generally coincided with increases in both the frequency and severity of crashes. However, research has been more limited as to the direct relationship between speed and safety. To this end, the present study evaluates the effects of increasing speed limits on the safety of rural limited access freeways while accounting for contemporaneous changes in the speed profiles of these same roadways. The speed limit increases in Mi

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30

M, Chandra Mohan, and Arivazhagan A. "Vehicle Safety Speed Controller under Driver Fatigue Using Eye Blink Sensor." International Journal of Trend in Scientific Research and Development Volume-2, Issue-1 (2017): 1373–76. http://dx.doi.org/10.31142/ijtsrd7130.

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31

D'Ambrosia, Robert. "FDA APPROVAL PROCESS: SAFETY BEFORE SPEED." Orthopedics 14, no. 2 (1991): 121. http://dx.doi.org/10.3928/0147-7447-19910201-04.

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32

Bauernschuster, Stefan, and Ramona Rekers. "Speed limit enforcement and road safety." Journal of Public Economics 210 (June 2022): 104663. http://dx.doi.org/10.1016/j.jpubeco.2022.104663.

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Bauernschuster, Stefan, and Ramona Rekers. "Speed limit enforcement and road safety." Journal of Public Economics 210 (June 2022): 104663. http://dx.doi.org/10.1016/j.jpubeco.2022.104663.

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34

Kweon, Young-Jun, and Kara M. Kockelman. "Safety Effects of Speed Limit Changes." Transportation Research Record: Journal of the Transportation Research Board 1908, no. 1 (2005): 148–58. http://dx.doi.org/10.1177/0361198105190800118.

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This work estimates the total safety effects of speed limit changes on highspeed roadways by using traffic detector data and Highway Safety Information System data from 1993 to 1996. To gauge the total effects, the study applies a sequential modeling approach: average speed and speed variance models are first estimated on the basis of roadway design, use, and speed limit information. Then, crash counts (of varying severity) are estimated on the basis of the speed estimates, design, and use variables. The 4 years of data come from 63,937 homogeneous roadway segments along seven Interstates and

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Fieldwick, R., and E. J. H. de Beer. "Rural speed limit changes and safety." Transportation Planning and Technology 12, no. 3-4 (1988): 173–80. http://dx.doi.org/10.1080/03081068808717370.

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Wong, S. C., N. N. Sze, Hong K. Lo, W. T. Hung, and Becky P. Y. Loo. "Would relaxing speed limits aggravate safety?" Accident Analysis & Prevention 37, no. 2 (2005): 377–88. http://dx.doi.org/10.1016/j.aap.2004.09.008.

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37

Martinez, James. "Speed Key Increases Efficiency and Safety." Opflow 44, no. 10 (2018): 24. http://dx.doi.org/10.1002/opfl.1083.

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38

Chen, Xin, Xiaoling Ye, Yingchao Zhang, and Xiong Xiong. "Analysis of Wind Speed Characteristics Along a High-Speed Railway." Applied Sciences 15, no. 1 (2024): 138. https://doi.org/10.3390/app15010138.

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The safe operation of high-speed railways (HSRs) is significantly challenged by strong winds. Accurate wind speed prediction along HSRs is crucial for ensuring the safety of train operations. However, existing research primarily focuses on designing and improving data-driven models, with limited attention given to the characteristics of wind speed specific to HSR environments. To address this gap, this study analyzes the wind speed characteristics of weather stations (WSs) and railway stations (RSs) along an HSR. These characteristics are explored from multiple perspectives, including wind spe

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39

Padget, Eric D., Keith K. Knapp, and Gary B. Thomas. "Investigation of Winter-Weather Speed Variability in Sport Utility Vehicles, Pickup Trucks, and Passenger Cars." Transportation Research Record: Journal of the Transportation Research Board 1779, no. 1 (2001): 116–24. http://dx.doi.org/10.3141/1779-16.

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The different characteristics of sport utility vehicles (SUVs), pickup trucks, and passenger cars put the smaller vehicle at a disadvantage in a crash. A larger difference in the speed of two vehicles can also increase crash severity, and increases in speed variability on a roadway can decrease overall safety. Research investigated whether drivers of SUVs, pickup trucks, and passenger cars choose different vehicle speeds during winter weather. Vehicle speed, roadway condition, time of day, and vehicle type were recorded during normal and winter-weather conditions. The results indicated that wi

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40

Cefalo, Raffaela, Tatiana Sluga, Giulio Ossich, and Roberto Roberti. "Assessment of Design Consistency for Two-Lane Rural Highways with Low Tortuosity Alignment." Sustainability 16, no. 3 (2024): 987. http://dx.doi.org/10.3390/su16030987.

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One technique employed to enhance road safety involves assessing the alignment’s consistency. A prevalent measure of consistency is evaluating speed variations along the alignment. A key consideration in this assessment is determining the speed upon which the road alignment should be based. This research reveals that on two-lane rural highways with low tortuosity alignments, operating speeds on horizontal curves and tangents consistently exceeded not only the design speeds but also the maximum permissible design speed for the road category. Consequently, using the design speed to assess consis

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Wang, Lijie, Xianwen Zhu, Ziyi Li, and Shuchao Li. "Ultrasonic Obstacle Avoidance and Full-Speed-Range Hybrid Control for Intelligent Garages." Sensors 24, no. 17 (2024): 5694. http://dx.doi.org/10.3390/s24175694.

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In the current study, which focuses on the operational safety problem in intelligent three-dimensional garages, an obstacle avoidance measurement and control scheme for the AGV parking robot is proposed. Under the premise of high-precision distance detection using Kalman filtering, a mathematical model of a brushless DC (BLDC) motor with full-speed range hybrid control is established. MATLAB/Simulink (R2022a) is used to build the control model, which has dual closed-loop vector-controlled motors in the low- to medium-speed range, with photoelectric encoders for speed feedback. The simulation r

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Xu, Chubo, Jianxiao Ma, and Xiang Tang. "A Simulation-Based Study of the Influence of Low-Speed Vehicles on Expressway Traffic Safety." Sustainability 14, no. 19 (2022): 12165. http://dx.doi.org/10.3390/su141912165.

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To reveal the impact mechanism of low-speed vehicles (LSVs) on expressway traffic safety, this paper uses the polynomial fitting method to establish evolution models of traffic density and average speed at different LSV speeds in order to explore the queuing and dissipation characteristics of vehicles affected by LSVs and investigate the impact range of LSVs on expressways. Based on the findings above, this paper builds a Surrogate Safety Assessment Model (SSAM)-based model to quantify driving safety and further explore the differences in vehicle conflicts when an LSV moves in different lanes

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Coropulis, Stefano, Paolo Intini, Nicola Introcaso, and Vittorio Ranieri. "Credible Variable Speed Limits for Improving Road Safety: A Case Study Based on Italian Two-Lane Rural Roads." Sustainability 17, no. 11 (2025): 4833. https://doi.org/10.3390/su17114833.

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In an ever-changing driving environment where vehicles are becoming smarter, more autonomous, and more connected, a paradigmatic change in signals for drivers might be required. This need is correlated with road safety (social sustainability). There are several factors affecting road safety, and one of these, especially important on rural roads, is speed. One way to actively influence drivers’ speed is to intervene with regard to speed limit signs by providing credible and effective limits. This goal can be pursued by working on variable speed limits that align with the boundary conditions of

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Türe Kibar, Funda, Elif Ateş, and Fatmanur Gel. "Investigation of the Pothole-Designed 3D Pedestrian Crossing to Improve Pedestrian Safety." Kocaeli Journal of Science and Engineering 8, no. 2 (2025): 111–20. https://doi.org/10.34088/kojose.1603598.

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Every year, approximately 1.19 million people lose their lives in traffic accidents, and more than half of the fatalities are among pedestrians, motorcyclists, and cyclists. Pedestrian accidents are especially attributed to drivers not prioritizing pedestrians and not slowing down at pedestrian crossings. Pedestrians are vulnerable road users and increasing speed may change the result of a crash. Therefore, this study aims to provide visual appeal and encourage drivers to reduce speed with a new pothole-designed 3D pedestrian crossing. The study was implemented on the Başkent University Campus

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45

Šavija, Ana, and Mladen Kulundžija. "Analysis of the impact of speed on traffic safety in the city of Banja Luka." Put i saobraćaj 69, no. 3 (2023): 51–57. http://dx.doi.org/10.31075/pis.69.03.08.

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Speed, as one of the basic parameters for the movement of an individual vehicle, is the main cause of traffic accidents. Inadequate speed often leads to traffic accidents with serious consequences, or often fatal accidents. By increasing the speed, visibility decreases, that is, it is more difficult to see other road users, which endangers their safety. By moving on the road, the vehicle achieves different speeds at different moments of time, that is, vehicles move at different speeds under the same road and ambient conditions. In this paper, an analysis of the impact of vehicle speed on traff

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Son, Hojun “Daniel”, Michael D. Fontaine, and Byungkyu “Brian” Park. "Long-Term Speed Compliance and Safety Impacts of Rational Speed Limits." Journal of Transportation Engineering 135, no. 8 (2009): 536–44. http://dx.doi.org/10.1061/(asce)te.1943-5436.0000017.

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Echaveguren, Tomás, Marcelo Bustos, and Hernán de Solminihac. "Assessment of horizontal curves of an existing road using reliability concepts." Canadian Journal of Civil Engineering 32, no. 6 (2005): 1030–38. http://dx.doi.org/10.1139/l05-056.

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Horizontal curves on road are commonly analyzed under design speed point of view, where it is assumed that the maximum speed of a vehicle in a curve is the design speed. The empirical evidence has demonstrated that when the design speed is low, the operating speed tends to be higher. This happens because of an available remaining lateral (or transverse) friction for speeds over design speed. This condition is determined by a speed limit, obtained from the demand and supply equilibrium of friction of a pavement. The difference between operating and design speeds is usually considered as the mar

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Shirazinejad, Reza, Sunanda Dissanayake, Ahmed Al-Bayati, and David York. "Evaluating the Safety Impacts of Increased Speed Limits on Freeways in Kansas Using Before-And-After Study Approach." Sustainability 11, no. 1 (2018): 119. http://dx.doi.org/10.3390/su11010119.

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In the summer of 2011, a change in the Kansas laws came into effect, increasing the speed limit on a selected set of freeway sections from 70 mph to 75 mph. Higher speeds were thought to have economic benefits, mostly because the travel time reduction means people reach their destinations more quickly. In this study, the sections where the speed limits remained unchanged, are compared to freeway sections that have been influenced by speed limit increase, to evaluate safety effectiveness. The study utilizes the before-and-after study with comparison group method to assess the safety effects pro

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Legnani, Mirko. "Speed and Efficiency." Industrial Vehicle Technology International 28, no. 1 (2020): 76. http://dx.doi.org/10.12968/s1471-115x(23)70484-4.

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Fu, Rui, Yali Zhang, Chang Wang, Wei Yuan, Yingshi Guo, and Yong Ma. "Research on the Influence of Vehicle Speed on Safety Warning Algorithm: A Lane Change Warning System Case Study." Sensors 20, no. 9 (2020): 2683. http://dx.doi.org/10.3390/s20092683.

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Speed has an important impact on driving safety, however, this factor is not included in existing safety warning algorithms. This study uses lane change systems to study the influence of vehicle speed on safety warning algorithms, aiming to determine lane change warning rules for different speeds (DS-LCW). Thirty-five drivers are recruited to carry out an extreme trial and naturalistic driving experiment. The vehicle speed, relative speed, relative distance, and minimum safety deceleration (MSD) related to lane change characteristics are then analyzed and calculated as warning rule characteriz

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