Development of Delay Model for Selected Signalized Intersections at CBD in Sulaymaniyah City
The purpose of this research is to develop an empirical model for delay prediction at Signalized Intersections as a function of influence traffic and geometric features. Two Signalized Intersections with different characteristics are selected in Sulaymaniyah city. Field traffic volumes, signal ti...
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| Format: | Article |
| Language: | Arabic |
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Mustansiriyah University/College of Engineering
2014-09-01
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| Series: | Journal of Engineering and Sustainable Development |
| Subjects: | |
| Online Access: | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/965 |
| _version_ | 1828095127769317376 |
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| author | Gandhi Ganim Sofia Ali Jabbar Kadhim Saad Mohsen Khalil |
| author_facet | Gandhi Ganim Sofia Ali Jabbar Kadhim Saad Mohsen Khalil |
| author_sort | Gandhi Ganim Sofia |
| collection | DOAJ |
| description |
The purpose of this research is to develop an empirical model for delay prediction at Signalized Intersections as a function of influence traffic and geometric features. Two Signalized Intersections with different characteristics are selected in Sulaymaniyah city. Field traffic volumes, signal timings and phasing and control delay were measured during peak and off-peak periods using video recording technique. Geometric design elements were measured through a field survey and satellite image. A statistical approach is used to develop delay model (linear regression model with 95%). The statistical analysis indicates that both geometric and traffic variables have a significant effect on delay time. The regression model, developed to estimate delay, shows the good correlation with field values. The ratio of total width of exit roadway of intersection for traffic departing straight forward to total width of lane groups departing to the same exit roadway at the same phase at stop line (We/Ws) appear to affect the delay. The ratio has a negative effect on delay time when the ratio is less than 1.0. The model has been compared with SYNCHRO delay model. It is found that although SYNCHRO delay overestimates delay at high ) v/c ( range, but it does not have a significant difference with the field delay at 95% confidence level.
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| first_indexed | 2024-04-11T07:08:13Z |
| format | Article |
| id | doaj.art-ba60f43bc2ec4a70b63b12857ca1e4ec |
| institution | Directory Open Access Journal |
| issn | 2520-0917 2520-0925 |
| language | Arabic |
| last_indexed | 2024-04-11T07:08:13Z |
| publishDate | 2014-09-01 |
| publisher | Mustansiriyah University/College of Engineering |
| record_format | Article |
| series | Journal of Engineering and Sustainable Development |
| spelling | doaj.art-ba60f43bc2ec4a70b63b12857ca1e4ec2022-12-22T04:38:17ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252014-09-01185Development of Delay Model for Selected Signalized Intersections at CBD in Sulaymaniyah CityGandhi Ganim Sofia 0Ali Jabbar Kadhim1Saad Mohsen Khalil2Highway and Transportation Engineering Department, Mustansiriyah University, Baghdad, IraqHighway and Transportation Engineering Department, Mustansiriyah University, Baghdad, IraqHighway and Transportation Engineering Department, Mustansiriyah University, Baghdad, Iraq The purpose of this research is to develop an empirical model for delay prediction at Signalized Intersections as a function of influence traffic and geometric features. Two Signalized Intersections with different characteristics are selected in Sulaymaniyah city. Field traffic volumes, signal timings and phasing and control delay were measured during peak and off-peak periods using video recording technique. Geometric design elements were measured through a field survey and satellite image. A statistical approach is used to develop delay model (linear regression model with 95%). The statistical analysis indicates that both geometric and traffic variables have a significant effect on delay time. The regression model, developed to estimate delay, shows the good correlation with field values. The ratio of total width of exit roadway of intersection for traffic departing straight forward to total width of lane groups departing to the same exit roadway at the same phase at stop line (We/Ws) appear to affect the delay. The ratio has a negative effect on delay time when the ratio is less than 1.0. The model has been compared with SYNCHRO delay model. It is found that although SYNCHRO delay overestimates delay at high ) v/c ( range, but it does not have a significant difference with the field delay at 95% confidence level. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/965Signalized IntersectionSYNCHROTraffic Delay Model |
| spellingShingle | Gandhi Ganim Sofia Ali Jabbar Kadhim Saad Mohsen Khalil Development of Delay Model for Selected Signalized Intersections at CBD in Sulaymaniyah City Journal of Engineering and Sustainable Development Signalized Intersection SYNCHRO Traffic Delay Model |
| title | Development of Delay Model for Selected Signalized Intersections at CBD in Sulaymaniyah City |
| title_full | Development of Delay Model for Selected Signalized Intersections at CBD in Sulaymaniyah City |
| title_fullStr | Development of Delay Model for Selected Signalized Intersections at CBD in Sulaymaniyah City |
| title_full_unstemmed | Development of Delay Model for Selected Signalized Intersections at CBD in Sulaymaniyah City |
| title_short | Development of Delay Model for Selected Signalized Intersections at CBD in Sulaymaniyah City |
| title_sort | development of delay model for selected signalized intersections at cbd in sulaymaniyah city |
| topic | Signalized Intersection SYNCHRO Traffic Delay Model |
| url | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/965 |
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