As construction work is affected by weather events such as snow, cold temperature, humidity, and rainfall, conditions. Thus, to calculate acceptable delay duration, a reasonable method, suitable for practitioners, for predicting schedule delays caused by weather conditions is necessary. Therefore, in this study, we propose a method for calculating construction schedule delays where weather conditions are taken into consideration. This methodology combines weather information, the expected delay to particular types of construction as a result of altered weather conditions, and scheduling data, to determine the project duration and make it possible to reduce delays with the help of changes in commencement time of the project or modified scheduling. The objectives of the paper are twofold. The first objective is to provide a prediction of the potential delay as a result of weather conditions. The second objective is to help planners to make decisions making regarding the optimum construction approach to meet the project schedule given expected weather conditions.ud
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