This application creates an instant traffic alert through SMS notification, utilizing Vonage's SMS API and Google Maps API in Node.js. The system receives an SMS with source and destination locations from users, extracts the information, gets the traffic details using Google Maps API, processes the response to generate a readable string containing traffic details, and sends back the information to the same phone number via Vonage's SMS API. The application can be set up by installing necessary dependencies, setting up ngrok, configuring environment variables, and integrating with Vonage's SMS API and Google Maps API.