Effects of Construction Logistics in Bonny Metropolis: A case study of NLNG Train 7 project.

This research study investigates the effects of construction logistics in Bonny Metropolis and specifically the NLNG Train 7 project. A mixed-method approach was used for data collection, combining structured questionnaires and direct noise level measurements, obtained using a sound level meter. 97 of the questionnaires were completed and accounted for in the 120 questionnaires that were administered. The respondents comprised 63 males and 34 females, with 40 graduates and 57 non-graduates. Among the respondents are project managers, engineers, academicians, artisans, and local residents. Statistical Packages for Social Sciences (SPSS) were used to analyze the data. The noise level surveys found significant noise pollution in the metropolis due to construction logistics. 8% of Bonny Metropolitan experience a moderate level of noise pollution within the acceptable range of 60 - 70 dB, while 92% (36% and 56%) of Bonny Metropolitan experience high noise pollution. Traffic congestion also had a major effect on construction logistics. Results show that 12.4% of respondents described traffic as moderately affected, 16.4% as partially congested, 23.7% as congested, and 47.4% indicated over-congestion largely due to the movement of construction materials and heavy equipment. Respondents suggested several mitigation strategies that could assist in addressing these problems, which include scheduling construction events for off-peak hours or at night, sound barriers, placing specific construction routes, and improving logistics planning, among others. The results conclude that construction logistics influences both noise and traffic patterns in Bonny Metropolis.