Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : road

A Novel Algorithm To Detect and Extract The Texts of Road- Sign Plates in Video Scenes

Abdul Munem S. Rahma; Teaba Wala Aldeen Khairi

Engineering and Technology Journal, 2016, Volume 34, Issue 2, Pages 180-193

Traffic Road-Signs contain useful information for the road users; the operation of many of modern applications like the automatic or smart vehicle requires an automatic discrimination of the texts of the traffic road-sign. Discrimination of text compose of several stages, the first of these stages is detection and extraction of the texts. In this work, an algorithm is developed to detect, locate, and segment of the texts and the word in the video clips, that existing in the road signs in the city of Baghdad. The proposed approach includes two stages, the first one is processing the image to locate and extract images of the road-sign and neglect the rest of the image, and the second stage is processing the image of the road-sign plate to detect and extract the texts without symbols and shapes. The basic structure of the algorithm depends on the following functions: edge-detector, dilation, and filling-hole, morphological-opening. The total recall values of 89%, the total precision value of 93%.The algorithm is, then, tested based on video clips, implementation of the algorithm based on video clips confirms its ability to detect the texts which may appear in the video scenes, recall-rate(r) is excellent with a total value of 94.5% and a total precision value of 86.5%.The algorithm is tested to measure its validity to work under real-time operation, by processing one frame and exceed a set of next frames, the test appears that the algorithm is able to work under real-time operation with recall-rate(r) of(93%).

Effect of Geotextile Reinforcement on Flexible Pavement Roads

adi; Abdul Hadi Meteab AL Sa; Najah Mahdi Lateef Al -Maimuri; Dler Abdullah Omar al-mamany

Engineering and Technology Journal, 2013, Volume 31, Issue 20, Pages 299-315

A field full scale flexible road is constructed and the effects of geotextile reinforcement in paved road are tested by measuring the occurred rutting. The effect of different numbers and positions of geotextile reinforcement using seven road sections are evaluated and compared with unreinforced pavement section. It is found that a maximum reduction of rut depth is 96% when using three reinforcement layers at three different road layers interfaces, and a minimum reduction is 52% when using one reinforcement layer at interface I ( between wearing and binder layers) under the effect of maximum load cycles of 10000. The minimum Traffic Benefit Ratio (TBR= ratio between load cycles on a reinforced section to that of unreinforced section for the same rut depth) is found to be 4 when using one reinforcement layer in the interfaces I , and extremely large values for other reinforcement cases. Once, the above values appear how the service life of the paved road is increased by using geotextile reinforcement.
The cost-benefit analysis is also adopted in this research and found that by using one reinforcement layer the road cost is increased by only 14% resulting in increment value of TBR to 4 (this means that the road life is doubled 4 times if all other circumstances are fixed). This is a minimum case benefit when comparing it with all other cases; it is found that TBR values are exaggerated when different numbers and positions of geotextile reinforcement layers are used.