Abstract power.In our proposed work we use the

     Abstract Every day we are seeing a lot of accidents happening around the world.In 2015 Tamilnadu records the highest percentage of people those who met with traffic accident injuries. An effective way for reducing these traffic fatalities is to first develop automatic traffic accident detection system and second is reducing the time when first emergency responders reached that place.Recently in BMW, we have built-in vehicle automatic accident detection and notification system. While these could be a better approach and may work fine but they are very much expensive, complexity in maintenance and are not available for all the vehicles. Nowadays we can detect traffic accidents using smart-phones and that ability has only recently become possible because of the advanced technologies like sensors deployed in our smartphone and its processing power.In our proposed work we use the smartphone for accident detection. The whole system relies on the G-Force value(extracted from smartphone accelerometer sensor)to detect an accident in offline mode. To realize the fall detection technique, the waveform sequence of the tri-axial accelerometer(X, Y&Z Axis) on the smartphone is used as the system inputs. The acquired signals are then compared with our threshold G-Force value so that it can fetch the GPS location. The proposed system consists of two phases; the detection phase which is used to detect an accident and the notification phase which is used to send detailed information such as accident location longitude, latitude and an emergency message to the emergency responders(emergency contacts that were set earlier) when an accident happens. This will be useful for the fast recovery as the person who received those help notification can immediately call the nearby hospital and can request for emergency service. The message(SMS) is generated based on phone tower signal and if the phone is switched off in any case then the last updated location will be sent. Here we use the GSM is the technology to send the message and the location via SMS.  Introduction  The development of a transportation system has been the generative power for human beings to have the highest civilization above creatures in the earth. The automobile has a great importance in our daily life. We use it to go to our workplace, keep in touch with our friends and family, and deliver our goods. But it can also be a disaster to us and even can kill us through accidents. In 2015, TamilNadu registered a total of 69,059 accidents, nearly 14 percent of all road accidents in India. Speed is one of the most important and basic risk factors in driving. It not only affects the severity of a crash but also increases the risk of being involved in a crash.So our proposed work can help such victims and reduce the fatality rate.We basically develop an android application in which the falling ratio is calculated. This can be done by using various sensors deployed in our smartphone such as triaxial accelerometer and also by using human fall detection technique. This triaxial accelerometer calculates the G-force value in X, Y & Z axis and if the G-force value greater than the threshold value then the emergency message will be sent to our emergency contacts.The coordinates at that particular axis can be fetched using the tower signal from the base-stations.The GSM technology can be employed so that there is no need for any mobile connectivity.The already existing work related to this concept is to calculate the G-force value using the 3G/4G internet connections. And this model works only when connected to the internet and another related existing work is in which some wearable sensors which we found as robust as it is not comfortable to everyone to carry the sensors to each and every place and the cost of this method is also much higher due to the usage of many sensors. Our Proposed work has two phases the detection and notification phase the detection phase used to detect the abnormal threshold value and capture the place Co-ordinates ‘ie’ Longitude and latitude points and the notification system use the service providers cellular network signal and sends the GSM precisely it will send SMS to our emergency contacts without the use of any GPRS,3G etc. In our proposed work we have an idea to develop an android application in which we develop a sign up activity and login activity and we create a local database and link the login contacts to the database and if the application is started after the login activity the G-force value is calculated and if any abnormal ratios are identified greater than the fixed threshold value then the message and the coordinates will be sent through SMS.