Basemap support NHS England for the rollout of the COVID-19 Vaccine
The rollout of the COVID19 vaccine is one of the largest mass vaccination tasks in recent time. One of the tasks for NHS England and other NHS organisations is to identify and prioritise potential sites for delivery of the vaccination to the public. These need to be carefully considered, in terms of driving accessibility and the demographics of nearby residents. As the population of England is vast, the challenge is ensuring centres are chosen that enable the vaccine to be rolled out effectively. As this is time critical it is imperative that accurate and reliable data is utilised to ensure high quality analysis.
The Road Network: OS Highways
OS Highways is the most recent release of the road network by Ordnance Survey. This premium road network dataset is updated monthly and is the definitive road network for GB. OS Highways has detailed routing information such as turning restrictions and one-way roads. This allows for more realistic analysis of the journey times.
The Speed Data: OS Highways with Average Speed
OS Highways with Average speed, also known as TM Speed data is collected from the GPS in vehicles, the TM speed product is pre-queried into 6 time periods throughout the day, for example Monday-Friday AM PEAK (7-9am). TM speed data is bi-directional and linked to the OS Highways data, meaning it delivers the speed on both sides of the road, this is particularly relevant when there is large disparity between speeds. Hypothetically, at 9AM on a Monday morning the way into a city would be congested and therefore have a slower road speed, but the way out of the city less congested and quicker.
The Government published a priority list for the rollout of the vaccine, predominantly dictated by age and vulnerability. The inclusion of demographic data allows for analysis to show which vaccination centers are better suited for different groups of the population.
The average speed data provided by Basemap combined by OS Highways allowed much more accurate journey times from location of where the population live to the proposed locations than using typical speed just by the type of road. NHS England calculated contours of travel time bands to visually represent the travel times and then calculated the number of people in each priority group who reside within the contour bands and therefore how many people can reach the proposed vaccination center locations.
The right combination of datasets lead to the most accurate calculations, the most impactful locations informing the important decisions.
“Basemap’s support allowed the combination of real average speed data with OS Highways which meant we had much more trust in the results. This ensured quick and accurate reports that supported better decisions being made about the rollout.”