ISCE - International Student Conference of Civil Engineeringhttp://dspace.epoka.edu.al/handle/1/402024-03-28T21:41:30Z2024-03-28T21:41:30Z(Re)Construction or Optimization of Tirana Transportation System? Which comes first? A case study of an Isolated Intersection in TiranaEdison Barhani; Department of Civil Engineering, EPOKA Universityhttp://dspace.epoka.edu.al/handle/1/6892015-11-23T16:10:00Z2013-07-15T00:00:00Z(Re)Construction or Optimization of Tirana Transportation System? Which comes first? A case study of an Isolated Intersection in Tirana
Edison Barhani; Department of Civil Engineering, EPOKA University
Transportation system of Tirana Municipality has significantly evolved over the last twodecades. Besides the huge number of constructions, Tirana Municipality has invested a lot inconstruction and reconstruction of new roads resulting in a large transportation system. Thissystem has been expanded in order to meet the continuously increasing traffic demand.However, this situation has led to higher traffic congestion level since the other parts of theTransportation System such as intersection signalization, parking capacities and masstransportationfacilities, are neglected and not adapted to these changes. This researchanalyses an isolated signalized intersection by giving quantitative results of economical andenvironmental impacts. Analysis and simulation of an isolated intersection for the existingconditions is evaluated via SIGNAL2000 and Synchro6 software (microscopic simulation)under Highway Capacity Manual (HCM 2000). The same intersection is redesigned andoptimized to increase the capacity and decrease the delays. The optimization of the trafficsignal system is an important step towards successful traffic control, since delays in urbannetworks largely depend on the performance of the signal system. Comparison of existing andoptimized conditions emphasizes the importance of optimization of the transportation systemas the first and cheapest step to improve efficiency of the transportation system.
2013-07-15T00:00:00ZHow the Great Pyramid of Giza was built. An Engineering ViewAida Tasellari; Polytechnic University of TiranaErjon Kaiku; Polytechnic University of Tiranahttp://dspace.epoka.edu.al/handle/1/6902015-11-23T16:10:02Z2013-07-15T00:00:00ZHow the Great Pyramid of Giza was built. An Engineering View
Aida Tasellari; Polytechnic University of Tirana; Erjon Kaiku; Polytechnic University of Tirana
Today, more than forty centuries after the Pyramids at Giza were completed, the fact of how they were constructed remains a mystery. Although several hypotheses have been advanced, this pyramid has successfully kept the secret throughout the millennia. For more than 4500 years the height of the Great Pyramid of Khufu (Cheops) was the benchmark for tall building achievements. The present study investigates on these points in a more viable manner than the theories hitherto advanced. To obtain a more accurate perception of how the pyramids were built, we concentrated our efforts on exploring certain insufficiently explained factors in the existing theories on the construction of the Great Pyramid. Investigating these hypotheses from the engineering point of view, we notice that they have several untenable facts in their present forms. Utilizing the results of our study, we would advance the basis for a new theory that may satisfy the required conditions.
2013-07-15T00:00:00ZRehabilitating The Artificial Ponds With Geosynthetic Clay Liners - A Case StudySahin Caglar Tuna; Department of Civil Engineering, Ege UniversityEyyub Karakan; Department of Civil Engineering, Ege UniversitySelim Altun; Department of Civil Engineering, Ege Universityhttp://dspace.epoka.edu.al/handle/1/6922015-11-23T16:10:09Z2013-07-15T00:00:00ZRehabilitating The Artificial Ponds With Geosynthetic Clay Liners - A Case Study
Sahin Caglar Tuna; Department of Civil Engineering, Ege University; Eyyub Karakan; Department of Civil Engineering, Ege University; Selim Altun; Department of Civil Engineering, Ege University
Geosynthetic Clay Liners (GCLs) offer engineers, owners and contractors safe and mostly economic solutions to everyday engineering challenges encountered particularly in hydraulic engineering applications and especially in the liquid and waste landfill barrier systems. These elements assure the durability of the structure and at the same time prevent leakage. Although still today most of the liquid containment facilities are composed of compacted clay liners and some asphalt or concrete paving, GCLs have slowly started to gain rapid acceptance in lakes, ponds and sewage lagoon projects. One of the use of this Geosynthetic product in a water containment pond at the recreation area in Homeros Valley, Bornova, Izmir is reported in this study. Some key parameters of GCLs and its comparison with similar products in the engineering field is stated. The paper ends with the field performance of GCLs using some other related case studies with an outlook on further developments.
2013-07-15T00:00:00ZPotential Sources of Surface and Groundwater Contamination in Tirana- Durres RegionBora Shehu; EPOKA UniversityHalil Murat Ozler; EPOKA Universityhttp://dspace.epoka.edu.al/handle/1/6912015-11-23T16:10:07Z2013-07-15T00:00:00ZPotential Sources of Surface and Groundwater Contamination in Tirana- Durres Region
Bora Shehu; EPOKA University; Halil Murat Ozler; EPOKA University
The objective of this paper is to assess and evaluate the conditions of the surface andgroundwater resources in the Tirana-Durres region. The most important aquifer is that of Tiranaand it supplies with drinkable water (1200 -1300 l/sec) Tirana, Vora, Kamza and the other vicinities. The risk of pollution is very high because the aquifer's cover layer is very thin; the running rivers (Lana, Ishmi and Gjola Rivers) are very polluted due to over urbanization and thehigh usage of the sand soil for the construction industry. In addition, the groundwater layer inDurres region has high values of Cl-, K+ and Na+ ions, indicating a possible progression of sea water in the coastal aquifer of Durres. The potential for sea water contamination of the fresh water-bearing zones probably will continue to increase in west Durres, as freshwater zones continues to decline. The current situation in the region is evaluated through data from wells and spring and Water budget to evaluate the ground water characteristics. The distributions of different chemical properties are mapped to identify the most problematic zones by using GIS techniques. The study focuses on problems such as seawater intrusion in the area of Durres and stream water contamination in Tiran region. The effects of these phenomena are studied andsome possible remedies are discussed in this paper.
2013-07-15T00:00:00Z