The possible effects: Slips, trips and falls can cause serious injuries and this point not only affects workers but also passengers and civilians. Slipping and tripping has its own characteristics, for example dragged cables, uneven surfaces especially in airports as you need to level them before applying construction as well as obstacles, for example something in people's way such as construction materials such as equipment, concrete or waste and even falling from scaffolding and this can be prevented with the simplest thing which is cleaning, with good house cleaning many things can be prevented such as a wet or slippery breath. Injuries from falling materials can injure workers, passengers and civilians who pass through an area of ​​uncontrolled collapse, a falling object can fall into it and cause trauma, head injury and even death. This can be checked by using the hard hat or so-called helmets. Since the age of the building can be considered when designing the other half because if something goes wrong and collapses, this not only affects the workers but also the people who are in the already constructed building, however the risk of connecting services , for example connecting electricity, water, gas and telecommunications (telephones), and during this process anyone entering that area should wear full PPE (personal protective equipment) which prevents the individual from entering their body as they need to isolate them or disconnect it, for example electricity; if it connects to the body it can cause electric shock if it were 50 volts as it stops the heart from beating properly, stops the person from breathing and causes muscle spasms, electrical burns and this causes deep burns that need... ...half of the document ......emergency.htm accessed March 4, 2014• OSHA, nd. What are the main risks in construction?. https://osha.europa.eu/en/faq/faq1/what-are-the-main-hazards-in-construction accessed 17 March 2014• Health and Safety Executive. ND. Electrical injuries http://www.hse.gov.uk/electricity/injuries.htm accessed 29 February 2014• Cardinal M. 2002, The effects of vibration on human performance and hormonal profile. University doctoral school. [pdf] http://www.vibrogym.com/pdf/forschung/3_kraftzuwachs/effects_vibration_on_performance_and_hormonal_profile.pdf accessed March 1, 2014• HSE, nd. Dust. http://www.hse.gov.uk/construction/faq-dust.htm accessed 1 March 2014• The International Helicopter Safety Symposium. 2007. Security Management System http://www.ihst.org/Portals/54/SMS-Toolkit.pdf accessed March 2 2014