Browsing by Author "Fernando, K"

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item: Thesis-Abstract
Development of a synthetic sports surface for an athletic track
Siriwardene, L; Fernando, K
A synthetic sports surface is a rnulti-layer structure which has become very popular as a substitute tor natural grass. This research project was meant to study the feasibility of developing a natural rubber base top covering for an athletic track for Sri Lanka's tropical environment. Here, the scrap rubber crumbs were used as the aggregate which is bound by natural rubber latex and cement. The latter was used to help in drying the surface quickly and also to impart greater hardness. Two types of rubber crumbs, namely tyre crumbs and microqilular crumbs with two types - of latex recipes were used to prepare the samples. One latex formulation is about 60 per cent cheaper than the other. Together with the above variation the main emphasis was to determine the most suitable type of crumb and its particle size range which resulted in a surface having properties comparable with those of reference samples meant to be used as athletic tracks. The standard tests to evaluate the track performance are stipulated in DIN 18035 Part 6. However, these tests demand a set of specialized apparatus. These were not available and were not possible to turn out locally within the time frame of the project. Thus an attempt was made to compare the results 0 f the test samples with those of the reference samples by carrying out a set of short term standard tests commonly available. These short term tests showed that the proposed formulations give comparable results with the selected reference samples.
item: Thesis-Abstract
Redesigning lost spaces : an examination of restructuring public spaces within the urban core
Fernando, K; Wijegunawardena, S
It has been observed that there is a noticeable change in the evolution of urban areas in contemporary urban design. Places all over are becoming similar, losing their significance in identity and their appearance. The quality and the meaning of spaces change with time acquiring new meanings or becoming functionally obsolete. Thus, there has been a decline of the public realm which is considered to be the most important social aspect of the urban context. Mobility and communication have increasingly dominated public space, which has consequently lost much of its cultural meaning and human. purpose.
item: Conference-Abstract
Short-term traffic prediction with visitor location registry data
(Engineering Research Unit, Faculty of Engiennring, University of Moratuwa, 2016-04) Dilhasha, F; Fernando, K; Godahewa, R; Ossen, S; Perara, AS; Walpola, M; Jayasekara, AGBP; Amarasinghe, YWR
Increasing road traffic is a major issue in current world. In this paper, we propose a set of prediction models that can perform short term traffic prediction for a given road segment. These prediction models have been developed using Neural Networks (NN), Bayesian Networks, Hidden Markov Models, variations of Regression and ensemble approaches of these models. CCTV records are used for validation of the results based on which a maximum accuracy of 85% was achieved.