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Section VI. Employer’s Requirements 2-131 PART-2 Section –VI Employer’s Requirements 2-132 Section VI. Employer’s Requirements Scope of Supply of Plant and Installation Services by the Contractor Technical Specifications Disaster Warning Announcement System DWAS Version 1.0 Technical & Functional Requirements and Technical Specifications Section VI. Employer’s Requirements 2-133 Table of Contents 1 Introduction 134 1.1 Abbreviations 136 2 System Architecture 137 2.1 System Components – Description 137 DWAS – C 137 DWAS – D Unit 138 DWAS – R Unit. 138 3 Summary of Technical Specifications …………………………………… 139 4 DWAS – Detailed Technical Specifications 139 4.1 DWAS – System – General Requirements 139 5 DWAS - C Specifications 140 5.1 DWAS – C - General Requirements 140 5.2 DWAS – C - Functional Requirements 141 5.3 DWAS – C – Storage Requirements 142 5.4 DWAS – C –Security Requirements 142 6 DWAS – D Specification …………………………………………. 142 6.1 DWAS – D – General Requirements 142 6.2 DWAS – D – Functional Requirements 143 7 DWAS – R Specification 143 7.1 DWAS – R – General Requirements 143 7.2 DWAS – R – Functional Requirements 144 7.3 DWAS – R – Maintenance Requirements 145 7.4 DWAS – R – Powering Requirements 145 7.5 DWAS – R – Solar Panel Requirements 146 7.6 DWAS – R – Battery Requirements 146 7.7 DWAS – R – Communication Networks Port Requirements 146 7.8 DWAS – R – Audio Broadcast Port Requirements 147 7.9 DWAS – R – Hot line Port Requirements 148 7.10 DWAS – R – Light Port Requirements 148 8 Other Requirement Specification 149 9 List of activities by the Supplier & Purchaser 149 10. Warranty Specification 151 2-134 Section VI. Employer’s Requirements Introduction Background Tamil Nadu has a long coastline of 1076 KM constituting 12% of the coastline of India comprising of 13 coastal districts, 25 coastal blocks and 591 fishing villages. The coastal area of Tamil Nadu is multi hazard prone in nature. The major natural hazards that threaten the Tamil Nadu coast frequently are cyclones and associated storm surges. Floods and flash floods, particularly in urban areas, are not uncommon. In the past, it was only the cyclone and flood related disasters that occurred along the coastal areas but in the recent years, we have witnessed the deadliest tsunami disaster all along the Tamil Nadu coast, prone to vulnerable to earthquake and allied hazards. The areas are vulnerable to disaster because of high concentration of people, buildings, and infrastructure and socio economic activities. Therefore it is very important to prepare the villages and community with a disaster mitigation plan in order to reduce the damage and losses to lives and property. The World Bank funded Emergency Tsunami Reconstruction Project (ETRP) with a financial assistance of US$ 423 million focused on providing multi-hazard resistant houses with basic amenities, restoration of livelihood and repair and reconstruction works. Implementation of the project commenced in April 2005 and the project was programmed to be implemented by Rural Development, Municipal Administration, Town Panchayats, Public Works (WRO), Public Works (Building Organisation), Fisheries, Agriculture, Horticulture, Animal Husbandry and Veterinary Sciences, Environment, Forest departments besides Tamil Nadu Slum Clearance Board and Tamil Nadu Water Supply and Drainage Boards. The project now enters the second phase of rehabilitation and economic recovery. In the second phase commencing from 13.08.2009, the scheme for reconstruction of multi-hazard disaster resistant housing in 11 [Eleven] coastal districts [except Chennai & Thiruvarur districts] for vulnerable population, construction of evacuation routes and signages Evacuation shelters [in 12 coastal districts excluding Chennai] and installation of early warning systems in all the 13 coastal districts including Chennai are proposed to be taken up under the restructured ETRP. Vulnerability reduction of coastal communities (VRCC) – Phase II works: The sub-components include-In situ reconstruction of vulnerable houses (about 17,000 units in 11 coastal districts), evacuation shelters (about 139 in number), escape routes (about 150 km), installation of early warning systems and signages. The Rural Development and Panchayat Raj department would be the implementing agency for reconstruction of vulnerable houses evacuation routes and provision of signages in evacuation routes. The Public Works department [Buildings Organisation] will construct evacuation shelters and the Revenue Department [Project Management Unit] will arrange to procure and install Early Warning Systems. These works are targeted to be completed by December 2011. Section VI. Employer’s Requirements 2-135 The scope of work of VRCC includes: The proposal aims to build resilient coastal communities in the eleven tsunami affected coastal districts namely 1. Thiruvallur, 2. Kancheepuram, 3. Villupuram, 4. Cuddalore, 5. Nagapattinam, 6. Thanjavur, 7. Pudukottai, 8. Ramanathapuram, 9. Thoothukudi 10. Tirunelveli and 11. Kanniyakumari districts in Tamil Nadu and the broad strategies suggested are: a) Reconstruction of vulnerable houses in the coastal areas, b) Construction of about 139 nos evacuation shelters, [ in 12 coastal districts excluding Chennai] c) Construction of Evacuation Routes for about 150 km including bridges/minor crossings as found essential to provide easy escape routes in times of emergencies, Signage’s to assist the people will also be incorporated. d) Provision of Early Warning Systems with a focus on operationalization at community level. [ in all the13 coastal districts including Chennai] Scope of the Project Though technology has advanced to predict an occurrence of a natural disaster like Tsunami, earth quake, cyclone etc lack of timely alert results in huge loss of lives and properties over years. Many Rural and remote villages that are out of media coverage are the victims to these disasters. Other than natural disasters, there are man made disasters like chemical and biological accidents as well as terrorist attacks that can cause similar damages. With a view to overcome the above problems, it is proposed to provide Early Warning System for the habitations in the 13 coastal districts of Tamil Nadu. The Technical Specification and other parameters of the proposed Early Warning System are furnished below:- It is proposed to provide about 450 number of Early Warning System in the habitations located along the coast of the tsunami affected coastal districts consisting the following arrangements: One central unit namely DWAS-C Unit is proposed to be installed in the office of the Commissioner of Revenue Administration, Chepauk, Chennai – 5, Tamil Nadu, India which shall have the overall control / dissemination / monitoring of all the EWS provided in the habitations i.e., DWAS-R Units and the DWAS-D units provided in the 13 Coastal districts and issue necessary communications / warnings etc as found necessary. Total no of DWAS-C Unit is one [1] at Chennai 2-136 Section VI. Employer’s Requirements One unit namely DWAS-D Unit is proposed one each in the following coastal districts which shall control / monitor all the EWS i.e., DWAS-R Units provided in the habitations within the district and act as link between the DWAS- C unit i.e., Central Unit at Chennai and the rural areas i.e., DWAS-R Units within the district. Sl No District Sl No District 1 Thiruvallur 8 Pudukottai 2 Kancheepuram 9 Ramanathapuram 3 Villupuram 10 Thoothukudi 4 Cuddalore 11 Tirunelveli 5 Nagapattinam 12 Kanniyakumari 6 Tiruvarur 13 Chennai 7 Thanjavur One unit namely DWAS-R Unit to be provided in each of the habitations or by combining the habitations in such a way that the Audio range of the loud speakers covers a distance of one(1) kilometer radius and the visual range of LED lights covers a radius of one(1) kilometer during normal climate. This document provides the Technical specification of a Disaster Warning Announcement System (DWAS). The Technical specifications are formed with an aim to cover the following requirements • Cost-effective and efficient system • Easily installable • Capable of up-grading to support 1,500 isolated points [i.e., DWAS-R Units ] to the Central Headquarters and other districts [19 districts] over and above the 13 main coastal districts i.e., in total 32 i.e., DWAS-D Units • Wide geographical coverage supporting coastal and other hazard prone areas. • Rugged enough to work in harsh environmental conditions • Capable of working in remote areas with Solar Power to solve the problem of erratic and intermittent grid power • System with Centralized monitoring provisions The requirement of equipments for various units are as follows:- 1) Technical and Functional Requirement 1.1 Abbreviations S.No Acronym Description 1 DWAS Disaster Warning Announcement System 2 GSM Global System for Mobile communication , a digital cellular system standard for mobile based voice communication Section VI. Employer’s Requirements 2-137 3 GPRS Global Packet Radio Service, a GSM initiative to give high speed packet data service to GSM mobile terminals 4 RAID Redundant Array of Independent Disks, a storage technology that supports redundancy. 5 VRRP Virtual Redundant Router Protocol 6 IPSec Internet Protocol Security Layer, a security Layer protocol with encryption running at IP layer. 7 SSL Secured Socket Layer, a security protocol with encryption running at session level for an application. 8 IP66 Environmental Protection – Ingress Protection 66 corresponding to outdoor environment. 2.System Architecture DWAS System consists of DWAS Central Unit (DWAS-C), DWAS District Units (DWAS- D), and DWAS Remote Units (DWAS-R) communicating through GSM/GPRS networks. The mode of communication is Voice, Data, and SMS. 2.1 System Components - Description DWAS – C Unit DWAS-C is the Central Unit of the DWAS System. It shall have two server machines that shall operate 24x7 at the Central Site. Each Server shall connect to two GSM/GPRS modems to communicate to DWAS-D and DWAS-R Units. Each GSM/GPRS modem shall have connectivity to telephone equipment. Each Server shall be connected to a high speed internet modem / Router for data communication between DWAS-C, DWAS-D and DWAS-R units.