1. Big Data Analytics System for City Emergency Alerting
Advisor: Prof. Jerry Gao
Koushik Ram
Sindhuja Narra
Saikrishnan Baskaran
Jeyanthh Venkatachari Ravikumar
Implementation
Introduction
Existing Alert Systems
Data sets
AlertSCC:
AlertSCC can send text or voice messages to all mobile devices, cell-phones, landline phones, laptops, IPADs, desktops computers, and to the telecommunication devices used by the hearing and speech impaired. AlertSCC can send alerts and notifications only in English.
The different types of data like demographic and alerting system coverage and statistics were cleaned and stored into the MySQL database.
The analytics engine runs on Node JS Server as an independent web service and exposing REST APIs for the clients to communicate with.
Our project is a smart city emergency project to conduct a comprehensive study about the existing city emergency alerting systems and infrastructures using the data-driven approach.
To overcome the shortcomings of legacy disaster alerting systems, this project will provide a big data based analysis system for studying, evaluating alerting, and analyzing different types of city emergency alerting mechanisms with wider coverage to accurately deploy and distribute the available resources.
Flood
Biological
Earthquake
The results of the computation are summarized and wrapped in a http response and sent back to the web client.
Demographics sample
Results
IPAWS:
IPAWS receives and authenticates messages transmitted by using alerting authorities and routes them to IPAWS-compliant public alerting general public via radio,
television, cell phones, social media.
Oil Train Derailment
Screenshots of dashboards showing the impact and statistics for each scenario:
Project Objective
Objective #1: To find out the data-driven emergency alerting coverages for four different nature disaster scenarios, such as earthquakes, floods, fire accidents, and so on.
Objective #2: To find the system performance, limitations, and research ability problems in underlying emergency system infrastructures.
Logistical Formulae
Methodology
Oil Train Derailment:
Ri : ∑[ Qi*CEIi ]
Where,
Ri – Radius of Impact(Oil Train Fire)
Qi – Quantity of Oil per container (in gallons)
CEI – Chemical Explosion Index
Biological hazard:
I2 = I1 x D12 / D22
I1 -Intensity 1 at D1
I2 - Intensity 2 at D2
D1-Distance 1 from source
D2-Distance 2 from source
Flood:
Qp = 1.268(Hw + 0.3)2.5
Where,
Qp – Outflow Discharge
Hw- Outflow Discharge
Earthquake:
M = log10(A/T) + Q(D,k)
M- Magnitude
A - Amplitude of ground motion (in microns)
T - Time period (in seconds);
Q(D,h)- correction factor
D - Degrees between epicenter and station and focal depth
k - Kilometer for earthquake
Motivation
Mass Warning System available for use by the city of San Jose, (population 1,015,000 residents) should be capable of warning 90% of the population within ten minutes of an occurrence
Need to gauge the effectiveness of alerting systems in San Jose for high probable disaster scenarios like Anderson dam failure, Oil train derailment, Earthquake, Biological hazards
Need for an application that provides a proof-of-concept for analysis of alerting systems in San Jose and their ability to alert their target demographic in a timely manner.
Conclusions
The project is a prototype for disaster analytics systems by studying, analyzing and interpreting the data from multiple alert system and mapping them with demographic data.
It provides a solution for city planners and emergency operations center operators a way to gauge the impact of a disaster and the effectiveness of the alert systems available.
The web client is the dashboard running on the user’s browser. The Dashboard values are populated dynamically using REST calls made to the Node.js web services running in the back end.
Node JS and its HTTP libraries as backend server for handling requests
AJAX calls for these asynchronous communications between for the Web client and the analytics engine
Acknowledgement
We are deeply indebted to Prof. Jerry Gao for his invaluable comments and assistance in the preparation of this study, The San Jose City Disaster Management Team and Prof. Dan Harkey for their special interest in our work and encouraging words that kept us going.