Analysis of Fire-fighter Access as Protection against Fire Hazard in High-rise Building

There have been many cases of fire in high-rise building occurring in the world taking a lot of casualties, some of them are the World Plasco Building in Tehran, the Grenfell Tower in London, and the Cosmopolitan of Las Vegas in Las Vegas. One of the problems that arise in many cases of fire in a high-rise building is the difficulty of access for firefighters to control fire. According to these cases, it is crucial to analyse further the access of firefighter in a high-rise building as protection against fire hazard. The study aims to find out how to assess the reliability of the fire fighting access, water supply, access aperture, and shaft of the firefighter in a high-rise building as protection against fire hazards by using the Analytical Hierarchy Process (AHP) which is sufficient to solve the problems of the reliability level of firefighters access in a high-rise building. The result is that the access of firefighter in the high-rise building on the Good level of reliability. Therefore, to improve the results of the reliability value of firefighters access in the high-rise building to be better by giving some design recommendations which according to the requirements of firefighters access. Meanwhile, the researchers can use these results of the study as reference and information for future research. Keyword:fire, access, high-rise building, protection, system

Whereas to analyse the data, the research methods are the qualitative and descriptive analytic of the quantitative, which will compare the observation data on the variables in the case study with the prevailing theories and standards.
Determination of variables and sub-variables are from SNI 03-1735-2000 concerning Planning Procedures for Building Access and Environmental Access to Fire Hazard Prevention in Buildings. The following stages of data processing in assessing the reliability of fire-fighting access in Cambridge the Luxurious Mall and Condominium buildings using the AHP (Analytical Hierarchy Process) method. First is sorting variables and sub-variables based on their importance. Then, calculate the percentage of weight for each variable and sub-variablethe calculation of weighting percentage by reference to the Interest Scale (Table 1). Then, determine the Availability Value of each sub-variable in the case study (Table 2).    (Table 4) ( Table 5).  After determining the valuation of interests in the variables, the next step is by examining the initial comparison (Table 6). After calculating so get the value of each variable's importance, then do comparative normalization (Table 7).      So, the last stage is processing data from the results of the per cent weight of sub-variables to determine the reliability value of Cambridge the Luxurious Mall and Condominium (Table 12).  (Table 13).

Conclusion
After analysing the firefighter access in Cambridge the Luxurious Mall and Condominium building using the AHP (Analytical Hierarchy Process) method, this method is very useful in solving a problem in a hierarchical decision support system, pair comparison, and overall weight evaluation.
According to the results of data processing using the AHP method, the reliability value of firefighter access in Cambridge the Luxurious Mall and Condominium building is 2.86, which means that the level of firefighter access reliability is Good. According to the reliability values of firefighter access in Cambridge the Luxurious Mall and Condominium building, so are given some possible design recommendations to improve the reliability of firefighter. They are, the side that is directly bordering to the Deli river is difficult to access, and it is recommended to procure fire fighting vehicles that can access waters (streams). Besides, also place signages on the fire engine hard-standing in Cambridge the Luxurious Mall and Condominium building on the side of the road that didn't block the vehicles and pedestrians circulation. The design is flat with the road surface, in contrast, and glow in the dark while the hard-standing on the road outside the site along the outer wall of the building.
Then, placing signages on firefighter access aperture on each side of Cambridge the Luxurious Mall and Condominium building on each floor by the requirements. Complete yard hydrants following specifications, as well as carry out regular maintenance on yard hydrant systems, city hydrants, siamese connections, as well as the water supplies for the prevention of fire accident.
Considering a large number of users because of the mixed-use building function is recommended to provide the fire fighting lift in every firefighter shaft in Cambridge the Luxurious Mall and Condominium building. As an alternative, the fire fighting lift can use the freight elevator in the building that complies with the requirements of the fire protection system.