Fuzzy reliability theory analysis of traffic signal lamp performance
Over the past decade, many municipalities have begun to replace incandescent lamps in their traffic signals with light emitting diode (LED) arrays. While LED technology boasts longer lifetimes and superior performance over their counterparts, there are many limitations involved in both testing and e...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Multimodal Transportation |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772586325000097 |
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| author | Mason D. Gemar Shidong Pan Zhanmin Zhang Randy B. Machemehl |
| author_facet | Mason D. Gemar Shidong Pan Zhanmin Zhang Randy B. Machemehl |
| author_sort | Mason D. Gemar |
| collection | DOAJ |
| description | Over the past decade, many municipalities have begun to replace incandescent lamps in their traffic signals with light emitting diode (LED) arrays. While LED technology boasts longer lifetimes and superior performance over their counterparts, there are many limitations involved in both testing and evaluating their reliability. As such, the methodology and subsequent analysis procedures used to evaluate the reliability of traffic signal lamps along a corridor is proposed. To accomplish this task, the progression of the reliability assessment from individual lamp to the entire signal light system for a corridor is demonstrated. Furthermore, due to the nature of these systems and reliability assessment strategies, it is suggested that fuzzy, or more specifically, profust reliability theory could be applied to effectively analyze LED arrays, as well as corridor-wide signal light systems. Preliminary case study results, coupled with field observations of partially burned-out LED arrays, support this hypothesis. |
| format | Article |
| id | doaj-art-d110d9d555eb41c786f862dce84adbf3 |
| institution | Kabale University |
| issn | 2772-5863 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Multimodal Transportation |
| spelling | doaj-art-d110d9d555eb41c786f862dce84adbf32025-08-20T03:40:02ZengElsevierMultimodal Transportation2772-58632025-03-014110019510.1016/j.multra.2025.100195Fuzzy reliability theory analysis of traffic signal lamp performanceMason D. Gemar0Shidong Pan1Zhanmin Zhang2Randy B. Machemehl3Software and Services, General Motors, Austin Innovation Center, 13201 McCallen Pass, Austin, TX 78753, USADepartment of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, 301 E. Dean Keeton St., Austin, TX 78712, USA; Corresponding author.Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, 301 E. Dean Keeton St., Austin, TX 78712, USADepartment of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, 301 E. Dean Keeton St., Austin, TX 78712, USAOver the past decade, many municipalities have begun to replace incandescent lamps in their traffic signals with light emitting diode (LED) arrays. While LED technology boasts longer lifetimes and superior performance over their counterparts, there are many limitations involved in both testing and evaluating their reliability. As such, the methodology and subsequent analysis procedures used to evaluate the reliability of traffic signal lamps along a corridor is proposed. To accomplish this task, the progression of the reliability assessment from individual lamp to the entire signal light system for a corridor is demonstrated. Furthermore, due to the nature of these systems and reliability assessment strategies, it is suggested that fuzzy, or more specifically, profust reliability theory could be applied to effectively analyze LED arrays, as well as corridor-wide signal light systems. Preliminary case study results, coupled with field observations of partially burned-out LED arrays, support this hypothesis.http://www.sciencedirect.com/science/article/pii/S2772586325000097ReliabilityFuzzy reliability theoryProfust reliabilityTraffic signal lightsLight emitting diodes |
| spellingShingle | Mason D. Gemar Shidong Pan Zhanmin Zhang Randy B. Machemehl Fuzzy reliability theory analysis of traffic signal lamp performance Multimodal Transportation Reliability Fuzzy reliability theory Profust reliability Traffic signal lights Light emitting diodes |
| title | Fuzzy reliability theory analysis of traffic signal lamp performance |
| title_full | Fuzzy reliability theory analysis of traffic signal lamp performance |
| title_fullStr | Fuzzy reliability theory analysis of traffic signal lamp performance |
| title_full_unstemmed | Fuzzy reliability theory analysis of traffic signal lamp performance |
| title_short | Fuzzy reliability theory analysis of traffic signal lamp performance |
| title_sort | fuzzy reliability theory analysis of traffic signal lamp performance |
| topic | Reliability Fuzzy reliability theory Profust reliability Traffic signal lights Light emitting diodes |
| url | http://www.sciencedirect.com/science/article/pii/S2772586325000097 |
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