Download or read book Effects of Vision Enhancement Systems VES on Older Drivers Ability to Drive Safely at Night and in Inclement Weather written by Thomas J. Smith and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by University of Minnesota. Intelligent Transportation Systems Institute and published by . This book was released on 2000 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of a Vision Enhancement System on Drivers Ability to Drive Safely in Fog written by Lena Nilsson and published by . This book was released on 1996 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transportation Research Biennial Report written by Minnesota. Dept. of Transportation and published by . This book was released on 1999 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by University of Minnesota. Center for Transportation Studies and published by . This book was released on 2004 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relationship Between Driver Characteristics Nighttime Driving Risk Perception and Visual Performance Under Adverse and Clear Weather Conditions and Different Vision Enhancement Systems written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Vehicle crashes remain the leading cause of accidental death and injuries in the United States, claiming tens of thousands of lives and injuring millions of people each year. Many of these crashes occur during nighttime, where a variety of modifiers affect the risk of a crash, primarily through the reduction of object visibility. Furthermore, many of these modifiers also affect the nighttime mobility of older drivers, who avoid driving during the nighttime. Thus, a two-fold need exists for new technologies that enhance night visibility. Two separate studies were completed as part of this research. Study 1 served as a baseline by evaluating visual performance during nighttime driving under clear weather conditions. Visual performance was evaluated in terms of the detection and recognition distances obtained when different vision enhancement systems were used at the Smart Road testing facility. Study 2, also using detection and recognition distances, compared the visual performance of drivers during low visibility conditions (i.e., due to rain) to the risk perception of driving during nighttime under low visibility conditions. These comparisons were made as a function of various vision enhancement systems. The age of the driver and the characteristics of the object presented (e.g., contrast, motion) were variables of interest in both studies.
Download or read book The Effects of Conformal and Non conformal Vision Enhancement on Older Driver Performance written by and published by . This book was released on 2000 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vision enhancement system (VES) have the potential to increasre mobility for older drivers. The purpose of this research was to determine the effects of certain VES properties on older driver performance and preference. To achieve this, the research team conducted a comprehensive review of VES and head-up display (HUD) literature to determine gaps and limitations in previous research. A preliminary experiment, using digital video of suburban city streets conformal and non-conformal VES, was conducted. Conformal imagery directly highlights aspects of the traffic environment, whereas non-conformal displays are coupled to environmental events, but superimposed on them. The primary experiment tested older and younger driver performance with conformal and non conformal systems in every day driving, car following, intersection aproaches, emergency events, and VES failure in a medium-fidelity driving simulator. In all driving scenarios, conformal displays had performance advantage over non-conformal displays. Cluttered environments, such as heavy traffic, may not be conducive to enhancement. Implications of the results for the design of conformal and non-conformal VES, and for future research, are discussed.
Download or read book Effects of Age Related Declines in Visual Motion Processing on Older Driver Safety written by Heather Woods-Fry and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis reports three experiments investigating how age-related declines in visual motion processing affect older drivers' ability to drive safely. In particular, these experiments assess the efficacy of: 1) A test of motion sensitivity, the Peripheral Motion Contrast Threshold (PMCT) test, which evaluates ones' contrast threshold for detecting motion in the periphery, and 2) the 3D multiple-object tracking test (3D MOT), which evaluates the maximum stimulus speed at which one can maintain visual attention on several objects moving in three dimensions. Two versions of the PMCT test-the PMCT-10 and the shorter PMCT-2-were employed. Driving safety was measured via a high fidelity driving simulator, in addition to several self-report measures and archival data. Study 1 showed that PMCT-2 and PMCT-10 thresholds were associated with number of crashes in the simulator and other indices of unsafe driving. Study 2 examined whether the PMCT-2 could predict older driver performance during a different set of simulated driving scenarios, and whether it was associated retrospectively with real world crash rates. PMCT-2 results were significantly correlated with simulated crash risk. Moreover, Study 2 provided the first evidence that PMCT scores are associated with real-world crash, albeit in a small retrospective sample. Study 3 examined the relationship between results from both the PMCT-2 and 3D MOT tests and simulated driving. Multiple object tracking has previously been associated with older drivers' performance. Results showed a strong relationship in our sample between crash rates and 3D MOT results. However, we failed to replicate the results showing a relationship between PMCT and crash occurrence. This may have been due to high rates of subject attrition due to simulator sickness, which resulted in a small final sample. Overall, findings from the three studies demonstrate that results from PMCT and 3D MOT are associated with older drivers' performance measures, such as crash rates, dangerous lane deviations, and speeding. These findings support visual motion processing measures as viable candidates for inclusion in a multi-domain assessment of older drivers' fitness to drive.
Download or read book Driving With Confidence A Practical Guide To Driving With Low Vision written by Doron Peli and published by World Scientific. This book was released on 2002-01-08 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Millions of people, in the US and other parts of the world, face the grim prospect of losing their driving privileges, their mobility, and to a great extent their freedom, due to a deterioration in their eyesight or a disabling eye disease.Driving with Confidence is an empowering tool. Its message is simple: In many cases, people with low vision can and do receive, retain and safely exercise their driving privileges.The book presents a clear, no-nonsense discussion on the realities of low vision conditions, together with a practical program designed to help low vision individuals maximize their chances of retaining and/or extending their driving privileges. It also provides a detailed description of driving vision regulations in every state in the US.Site of interest: www.BiopticDriving.org which is a non profit group concerned with advocating the use of bioptics for driving.
Download or read book Enhanced Night Visibility Series written by M. Lucas Neurauter and published by . This book was released on 2005 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Phase II, Study 3 was part of the Enhanced Night Visibility project, a larger research effort investigating drivers' visual performance during nighttime driving. Study 3 helped expand the knowledge of how current vision enhancement systems can affect detection and recognition of different types of objects during adverse weather, specifically for snow conditions. A total of 20 participants detected and recognized different roadway objects while driving experimental vehicles equipped with various headlamps in a snow condition. A 4 by 3 by 2 mixed factorial design was used to investigate the effects of the different types of vision enhancement systems, the types of objects on the roadway, and driver's age on detection and recognition distances. Subjective evaluations for the different systems were obtained as well. The results of the empirical testing suggest that halogen low beam (HLB) configurations combined with an ultraviolet A (UV-A) setup consistently outperform the HLB by itself and the high intensity discharge (HID) configuration with respect to detecting and recognizing pedestrians in a snow environment. All three HLB configurations significantly outperformed the HID configuration for both detection and recognition of the objects presented. The three HLB configurations were not significantly different from each other with respect to recognition distances; however, there was a slight but significant increase in detection distance when the HLB was paired with one of the UV-A systems used. Finally, there were no significant findings for the subjective analysis, although there were some conflicting findings between the subjective and objective data"--Technical report documentation p.
Download or read book The Effect of Vision Enhancement System on Driving Performance and Safety written by Tal Sharfi and published by . This book was released on 2006 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Enhanced Night Visibility Series written by Myra Blanco and published by . This book was released on 2005 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Phase II--Study 1 was performed as a stepping stone to expand the knowledge of how different vision enhancement systems can affect detection and recognition of different types of objects. The empirical testing for this study was performed on the Smart Road testing facility during clear weather conditions. A total of 30 participants were involved in the study. A 12 by 9 by 3 mixed-factorial design was used to investigate the effects of different types of vision enhancement systems, types of objects on the roadway, and driver's age on detection and recognition distances; subjective evaluations were obtained for the different systems as well. The results of the empirical testing suggest that no vision enhancement system consistently performs best in clear weather conditions. However, the halogen headlamp tested (low-beam configuration) consistently provided one of the longest detection and recognition distances, and even when other systems provided farther detection distances, these distances were generally not significantly different from halogen low beam. The only exception was the infrared thermal imaging system tested, which resulted in significantly farther detection distances for pedestrians and cyclists wearing dark-colored (low-contrast) clothing."--Technical report documentation p.
Download or read book Enhanced Night Visibility Series written by Myra Blanco and published by . This book was released on 2005 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Phase II, Study 2 (rainy weather) was performed following the same procedures used for Study 1 (clear weather). Study 2 helped expand the knowledge of how current vision enhancement systems can affect detection and recognition of different types of objects while driving during adverse weather, specifically during rain conditions. The empirical testing for this study was performed on the Virginia Smart Road; the rain was controlled by weathermaking equipment. Thirty participants were involved in the study. A 12 by 7 by 3 mixed factorial design was used to investigate the effects of different types of vision enhancement systems, different types of objects on the roadway, and driver's age on detection and recognition distances; subjective evaluations also were obtained for the different vision enhancement systems. The results of the empirical testing suggest that vision enhancement systems that include halogen headlamps as their main component (i.e., halogen alone or halogen with ultraviolet A) consistently allow drivers the best detections during rain conditions. In fact, the halogen headlamp (low-beam configuration) provides the longest detection and recognition distances overall; in the few trials where other systems allow farther detection distances, these differences did not represent meaningful improvements. Even drivers using the infrared thermal imaging system, which resulted in farther detection distances for pedestrians and cyclists under clear conditions, perform no differently in the rain than when only the low beams of the vehicle were used"--Technical report documentation p.
Download or read book Enhanced Night Visibility Series written by Myra Blanco and published by . This book was released on 2005 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Phase II--Study 4 was part of the Enhanced Night Visibility project, a larger research effort investigating drivers' visual performance during nighttime driving. Study 4 helped expand the knowledge of how current vision enhancement systems can affect detection and recognition of different types of objects during adverse weather, specifically for fog conditions. Thirty participants were involved in the study. A 6 by 3 mixed factorial design was used to investigate the effects of different types of vision enhancement systems and driver's age on detection and recognition of a pedestrian on the roadway. Subjective evaluations also were obtained for the different vision enhancement systems. The analysis based on objective and subjective results revealed that the infrared thermal imaging system is the best configuration for detecting pedestrians in fog conditions. Halogen headlamps supplemented with ultraviolet A (UV-A) was a better configuration for detecting pedestrians than the halogen and high intensity discharge (HID) headlamps alone; however, the UV-A technology does not represent a dramatic improvement over the halogen and HID headlamps used in this research"--Technical report documentation p.
Download or read book Older Drivers Acceptance of In vehicle Systems and the Effect it Has on Safety written by Dawn Colette Marshall and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Older drivers make up the fastest growing segment of the driving population and are, in general, underrepresented in vehicle crashes due to their self-restrictive driving habits. However, as the baby-boomer generation ages into the population of older drivers, the presence of in-vehicle systems designed to counteract the physical and psychological changes of aging could change their habits. Using a literature review to identify systems, effects of aging, and crash statistics of older drivers, various in-vehicle system types were identified and rated for their potential to mitigate the effects of aging on driving performance and behavior. Focus groups were then held with two age groups of older drivers (55-64 and 65-75) to assess their acceptance of four different systems identified by the literature review. Data from the focus groups were factored into a final in-vehicle system matrix that rates system types' benefits to older drivers based on their generalized ability to counteract the effects of aging, and older drivers' acceptance of them. In-vehicle systems that alert drivers to potential hazards (e.g., a forward collision warning system) resulted in the highest safety rating while systems that facilitated a driver's ability to control the vehicle (e.g., an anti-lock braking system) had the lowest safety rating. Overall, the younger age groups of older drivers were more trusting of the various safety systems and felt that drivers their age would want the various systems compared to the older age group. In contrast, the 65-75 year olds were less anxious and less concerned about becoming overly reliant on the different systems compared to the 55-64 year olds" (page ii).
Download or read book Physician s Guide to Assessing and Counseling Older Drivers written by American Medical Association and published by . This book was released on 2010 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Conformal and Non conformal Vision Enhancement Systems on Older Driver Performance written by J. K. Caird and published by [Montréal] : Transportation Development Centre. This book was released on 2000 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
