The need for natural and artificial lighting is a supporting component in daily human activities outside and inside buildings. For lighting to be carried out properly, it must meet the requirements stated in SNI and Minister of Health Regulation No. 70 of 2016 concerning Standard Requirements for Light Intensity. One of the goals of lighting in a building is to create sufficient lighting and reduce the risk of accidents. Referring to the description, the author is interested in understanding and researching further the existing lighting standards in the UNIMA Workshop building. In evaluating, the authors obtain research data by conducting case studies in which data is collected, processed, compared and analyzed. The results showed that the light intensity in the UNIMA Workshop room had an average of 144.2 lux and in the work area of 191.06 lux.

Leaders and Followers algorithm is a metaheuristic algorithm which uses two sets of solutions and avoid comparison between random exploratory sample solutions and the best solutions. In this paper, it is used to solve the balanced transportation problem. There are some modifications in the proposed algorithm in order to fit the algorithm to the problem. The proposed algorithm is evaluated using 138 problems. The results are better than the results obtained by other algorithm from previous studies. Overall, Leaders and Followers algorithm has no difficulty in finding optimal solution, even in problems that have large dimension, number of supply and number of demands.