Earth units compressed and stabilized are friendly construction materials and sustainable from point of view of efficiency in using energy and lowering cost. However, it has lower properties and strength when compared with fired clay brick and concrete. The possibility of producing earth units compressed from soil stabilized with cement and pozzolana were investigated in this study. Soil samples were extracted from a pit at depth 1m under topsoil from Al-Zaafarania region in Baghdad. Results of the testing soils showed that the bulk density, moisture content, specific gravity and plasticity index performed satisfactory and suitable to produce such like soil units. Different percentage of cement and silica fume as a stabilizer. Soil units compressed with 20 N/mm2 pressed by a hydraulic loading machine. The unit’s strength significantly increase with increasing silica fumes content, decreasing the absorption water rate, and raises density of units.
Baghdad city suffer from the traffic jams problem. The lack of roads is accommodating the increase in transportation as well as the lack of the organization and healthy management. Meanwhile, traffic lights defect due to it may location near to the checkpoint which causes traffic jam and unusual delay. The transportation services depend on (private, taxi) cars which cause increase in traffic movement, energy consumption, emission of polluting gases for environment and the most important (first carbon oxide, nitrogen oxides, lead, carbon dioxide, suspended particles, oxides of sulfur. Thereby, this research will done determination the pollution rates induced from congestion in streets associated in the yard located near institute of technology / Baghdad. An account rate gases emitted from vehicles using regression equations de-pending on traffic size in streets, flow speed traffic movement, neighbouring building height, and afforestation density. The search reached to finding species and gasses rate which pollution the environment in comparison with international Health standards and benefit of the application Intelligent Transportation Systems (ITS) to reduce of the pollution ratio the resulting of traffic jams.
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