Risk Assessment Plan
Total Page:16
File Type:pdf, Size:1020Kb
Urban Improvement Trust RISK ASSESSMENT PLAN 1.0 GENERAL ASPECTS Urban Improvement Trust, Udaipur proposes to install aerial ropeway through Damodar Ropeway and Infra Ltd. for construction of Monocable Pulsated Passenger Ropeway system from State Council of Education, Research & Training (SCERT) (formerly known as SIERT), Fatehsagar to Neemach Mata Temple in Udaipur, Rajasthan. The aerial ropeways can have risk from environmentally induced I.e. natural threats, risks and hazards as well as human caused occurrences. The main objective of this Risk Assessment (RA) study for the proposed ropeway is to identify the disasters due to natural causes, human caused occurrences & technical failures and to provide risk mitigating measures to reduce associated hazards. The risks assessed for the project are with respect to the occurrence of disasters as follows: Natural disasters Earthquake Flood Cyclone Tsunami Drought In the proposed project, cyclone and tsunami are not applicable. Manmade disasters Fire Electricity related Accidents such as short circuit Technical fault/accidents Lapse in Security Thus, disaster management has been covered in detail in the subsequent sections. Risk Assessment Plan of Proposed Passenger Ropeway at Neemach Mata Temple, Udaipur 1 Urban Improvement Trust 2.0 DISASTER PREVENTION AND MANAGEMENT 2.1 Natural disasters (A) Earthquake Designing for earthquake resistance The project site is located in seismic zone III which indicates Moderate-risk zone. The project falls in the Udaipur district which is partly moderate (about 85%) & partly high-risk zone as shown in Seismic Zone map of Rajasthan given in Fig 1. Thus, there is low likelihood of earthquake in the project area and chance of an aftershock due to earthquakes in nearby areas. FIG 1: EARTHQUAKE ZONES RAJASTHAN (Source: http://www.dmrelief.rajasthan.gov.in/index.php/citizen-charter/maps-of- rajasthan/earthquake-zones accessed on 01.09.2018) As the study area falls within seismic zone III as per seismic zone map of Indian Standard IS 1893:1984. Therefore, at the time of designing and construction of the buildings, the design parameters shall be considered in compliance with IS 1893:1984 (Criteria for Earthquake Resistant Design of Structures). Risk Assessment Plan of Proposed Passenger Ropeway at Neemach Mata Temple, Udaipur 2 Urban Improvement Trust Preventive and mitigation Measures In case of occurrence of the earthquake, every individual would be made aware of the following: Keep calm and help others to keep calm. Do not panic. Check if you or anyone else is hurt. Use first-aid and wait for medical help. Do not move seriously injured people. Do not waste water and block telephone lines. Do not spread rumors. Volunteer to help. Keep the streets clear for emergency services. (B) Floods The project area is not prone to river floods. Besides there are no drains, canals, minors passing through the project site that can affect the project site during monsoon season. Water logging can occur for which proper storm water drainage will be made within the project site to avoid vector breeding. Flood zonation map of Rajasthan is given in Fig 2. FIG 2: FLOOD ZONATION MAP OF RAJASTHAN (Source: http://www.dmrelief.rajasthan.gov.in/index.php/citizen-charter/maps-of-rajasthan/ flood-zone assessed on 01.09.2018) Risk Assessment Plan of Proposed Passenger Ropeway at Neemach Mata Temple, Udaipur 3 Urban Improvement Trust Preventive and mitigation Measures Vulnerability from natural disasters to the ropeway is given in below: Hazard Vulnerability Earthquake Damage to Towers, Terminal Stations, Cable Cars Landslides Damage to Towers if slope stability is not maintained. Flooding Damage to structure Wind & cyclone Damage to cable car. Cloud Burst damage to towers and terminal stations 2.2 Man made disasters (A) Fire Fire can mainly cause due to electric spark in electrical room, fire in the surrounding forest area, fire in fuel storage places, etc. It can cause panic and suffocation to people Mitigation measures to be taken for fire Smoking shall be prohibited. Electrical equipment to be kept in a enclosures Wiring and earthing as per national electrical code requirements. Fire extinguishers to be located at prominent places and easily accessible for small fires. Small spills to be cleaned with sand, earth, or other noncombustible absorbent material, and the area then flushed with water. All electrical cables will be underground and sophisticated modern electrical distribution system will be used, which will further reduce risk of fire. (B) Electricity The ropeway will run on electricity & hence electrical current can pass through cable cars & wires due to inadequate insulation or accidently. Measures to be taken during electric accidents Wiring shall be as per the stipulation laid in Indian Codes. Sub- standard wiring and over loading of electricity system shall be avoided Each station will have a first-aid medical facility. Risk Assessment Plan of Proposed Passenger Ropeway at Neemach Mata Temple, Udaipur 4 Urban Improvement Trust (C) Technical fault/accident Technical faults/accidents includes rope with broken wires in service, drive / return sheave shaft failure / tension system failure, mount assembly parts failure, over speeding of ropeway / brake failure, rollback, slippage / fall of cabin, entanglement of cabin, swinging of cabin resulting in fall of passengers outside cabin, cabin derailment at station etc. Measures to be taken during Technical fault/accidents Ropeway shall be constructed as per rules and regulations and Rajasthan Ropeway Act Provision of minimum of two braking system-Normal/ Emergency Brake and Service Brake will be there in the ropeway system. The emergency brake shall be weight operated & thruster released brake which should be provided on brake ring fitted on drive sheave. The service brake shall be weight operator thruster released brake shall be provided on high speed brake drum coupling. In case of Power failure, the emergency brake shall automatically be active and stop the Drive. The cabins will be provided with door lock which cannot be opened by the passengers from inside. An Automobile Diesel engine as auxiliary drive to run the ropeway at reduced speed to bring stranded cabins on line to the terminal stations in case of failure of electrical power supply or main motor or standby DG set. Line safety is ensured by the provision of: a) Rope derailment detectors/limit switches at line trestles and stations to stop ropeway in case of emergency b) Rope catchers will be provided on mount beams on line trestle, P.F. and Stations to arrest/ support the hauling rope in case of de- ropement and at the same time trip the drive Speed Control and stopping of ropeway, if the speed exceeds set limiting speed. An Anemometer is provided at an appropriate place for wind speed Indication with warning and ultimately to stop the ropeway drive motor in case of wind speed exceeding set limit. Provision of limit switches on Tension Trolley, track to stop ropeway in case the trolley, reach the end point of track Provision of emergency switches at stations to stop the ropeway, if any malfunctioning is noticed. The safety devices, electrical equipment design and its safety margin, are all as per IS specifications. Risk Assessment Plan of Proposed Passenger Ropeway at Neemach Mata Temple, Udaipur 5 Urban Improvement Trust Before making it for public use, the ropeway will be inspected by competent authority as par Rajasthan Ropeway Act 1996 & its rules & after getting clearance from him the ropeway shall be open for public use. Painting All equipment’s, trestles and structures will be either galvanized or painted. D) Security Lapse in security can damage the ropeway system. War, crisis & terrorists can cause panic among public and staff. Preventive and mitigation measures A four tier security plan shall be followed Tier I: Securing Building Externally and its periphery 1. Manual Checks: At all terminals, the visitors shall be manually checked 2. CCTV will be installed at all important location with a remote viewing facility and record back up. Tier II: Security of Building from Internal Threats 1. All the staff shall be recruiting after proper verification of identity and residential proof. The identity card shall be given. 2. Communication Systems: Proper communication system to security staff shall help them to coordinate better during emergencies. a. Training and Security Drills (including Contingency plans) Disaster planning is the responsibility of all sections of the community. The police, fire brigade, civil defense, Home Guards, press, clergy, industrial groups, and community groups must participate in the pre-disaster planning. The community as a whole has the responsibility to teach first aid to groups in the community that could be utilized in disaster situations. The disaster may involve the normal communication network itself. Therefore, two-way radio systems and messenger systems must be included as backups in the event of a communication-system failure. Proper training, security drill and evacuation drill shall be conducted in a defined time period, so as to train the management people, security personnel’s, senior staff and all other working staff to take control of all odds what so ever come in the way. The training shall be done periodically. Risk Assessment Plan of Proposed Passenger Ropeway at Neemach Mata Temple, Udaipur 6 Urban Improvement Trust b. Security of Infrastructure Support Service System 1. Random checking of building including Toilets and dust bins. 2. Random checking of visitors 3. Installation and Precautions of Public Addressing system. 4. Preventive measures for attack on D.G. Sets, Water Treatment System, Water Storages, Ventilation System. c. Making of Standard Operating Procedures A standard operating procedure manual shall be prepared, followed and maintained for all the eventualities Tier IV: Emergency Response Team An emergency response team shall be formed. Rescue Arrangement: The Ropeway system would be provided with a rescue arrangement to enable the passengers being evacuated in case of an extreme emergency where cabins are stopped on line.