Evaluation of random parking layout SBA mall using integer linear programing

SBA Mall is the largest shopping center in Aceh. The number of vehicles visitors reach 1.300 units of cars every day so it takes parking space that can accommodate visitor’s vehicles. Setting the parking is very important to produce parking space with a lot of capacity, as well as comfortable and safe for visitors. The problem that arises today is the application of the parking rules that have not been applied in the parking area of SBA Mall. Integer Linear Programming (ILP) in this research is used to model parking layout by planning three scenarios that is based on the actual condition, the width of alley according to the Decree of Directorate General of Land Transportation without pedestrian facility, and all the size of parking lot fully according to the Decree mentioned above. The result shown that the total unit of parking space (UPS) based on the first scenario is 119 UPS, the second scenario is 94 UPS and in the third scenario is 97 UPS.

The effect of calcium salts on air-void structure in air-entrained concrete – a statistical and simulated study

This paper analyzed the air-void system in air-entrained concrete in the presence of calcium salts and developed a new approach method, random “parking” method, for studying it. The foam index test studied indicated that the introduction of calcium salts did result in a drop in foaming power at 0.5 min, but the foam ability after 60 min was enhanced in surfactant-water solution. The Powers spacing factor in the air-entrained hardened concrete decreased gradually in the presence of CaCl2 or Ca(NO3)2. The probability density function of air-void distribution showed that the air-void size in air-entraining concrete was reduced with the addition of CaCl2 and Ca(NO3)2. The random parking method developed herein was compared with the experimental Powers spacing factor, and the concept of the alternative spacing factor, defined as the average distance between the surfaces of the two nearest air voids in concrete, was used. It was indicated that the alternative spacing factor is in close proximity to the experimental Powers spacing factor.

The Current Situation Analysis of Parking in Baotou Urban Center District and Countermeasures

For parking problems of Baotou: shortage of parking spaces, the unreasonable parking layout, parking difficulty, random parking, and the paper describes the existence reason of parking problems in Baotou urban center district through the current situation analysis of the parking in Baotou urban center district. On this basis, the paper discusses several countermeasures to solve the parking problems of the central district.