Month: November 2015


Unified API Part 4: Roads Data

In Part 3 of this series, I gave examples of finding the ‘Routes of Things’ using the Unified API. This post will focus on roads – how to find and make use of the traffic, road disruption and planned works information on London’s road network.

We’re really keen for customers to check for disruption before they travel on all forms of transport, including the capital’s roads. Developers working with our Unified API have a really important role to play in developing products that meet road users’ needs. This is particularly important as we implement our Road Modernisation Plan – £4bn of investment in improving London’s roads – so planning ahead during these works is crucial for businesses and drivers across the city.

This means that the apps developers create will be meeting a genuine need, and we’re keen to make this process as easy as possible by explaining what data is available, how it can be used, and by taking feedback so we can make improvements.

All of the API examples in this page are live, however they do not include API authentication tokens. This means that if you follow the link as is, you will be using anonymous access, which is throttled for fair use, so you may get a 403 response. It is recommended for your own development you obtain an ‘app_key’ and ‘app_id’ by registering here. The data in these examples will be in JSON format, so installing a JSON formatter plugin in your browser will help you read the data returned.

Let’s start with the most prominent example of the roads information, shown when viewing the Traffic status board.

The Traffic Status Board gives info on all TfL managed routes on the London road network

The Traffic Status Board gives info on all TfL managed routes on the London road network

Read More