There is lack of data on construction waste in Lebanon. The main barrier to implement 3R was the “lack of awareness and knowledge”, and the most critical success factor was “waste management regulations”. It was found that “site management and supervision-related factors” are the main sources of C&D waste. Reliability and ranking analysis were performed on the collected data. Most of the responses (i.e., consultants and academics) were from the private sector results showed that respondents to this survey were biased for their expertise. A survey questionnaire was sent to 80 Lebanese experts, and 50 questionnaires were returned. Additionally, four optional open-ended questions were also included in the survey for qualitative data collection. Factors were ranked by using 5-point Likert scales. For this purpose, an extensive literature review has been carried out, and a questionnaire survey consisting of five sections has been developed. This research aims to assess and analyse the importance of waste management plans and their impact on the generation of construction and demolition waste in Lebanon. Therefore, it is essential to manage C&D waste. Lebanon has experienced many situations that have increased the generation of C&D waste. Considering this, attention needs to be paid to construction and demolition (C&D) waste. The construction industry is known as one of the biggest generators of solid waste.
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