Worcestershire Strategic Transport Model

Worcestershire Strategic Transport Model

The Worcestershire Strategic Transport Model (WSTM) is a county-wide strategic transport model developed by Amey and Sweco for Worcestershire County Council.

The WSTM is a digital representation of Worcestershire’s transport network to help understand future changes in travel movements.

It is capable of predicting future changes in trip making and supports a number of key functions including developing transport business cases, local plan development and transport strategy development. It is used as a strategic model for the assessment of an emerging local plan as a whole. 

The Worcestershire Strategic Transport Model (WSTM) was developed during 2022 to 2024 using travel data, collected in 2022.

What traffic data was captured to develop the WSTM?

Amey and Sweco have developed the WSTM on behalf of the council and specified a large data collection exercise in 2022. The counts were located to capture traffic movements across the County and traffic movements for more urbanised areas.

Additional count sites were located to capture data on routes that could be used as cut throughs (rat runs) to provide greater accuracy in the model.

What has the WSTM been used for?

The WSTM has been used during 2024 as part of the transport evidence for the South Worcestershire Development Plan Review (SWDPR).

What are future uses of the WSTM?

It is expected that the WSTM will be used in 2026 as an additional part of the transport evidence base to continue to inform the Bromsgrove local plan review process. The transport evidence base will be published alongside future iterations of the local plan.

When is the survey taking place

The surveys will be carried out from Monday 29 September until Sunday 19 October 2025. We will capture one week data for each count location (7 days). 

Why are we undertaking traffic count surveys on locations across Bromsgrove District?

The WSTM contains a large amount of traffic count data across the highway network of Worcestershire, mostly collected in 2022.

This data is compliant with government’s Transport Analysis Guidance (TAG) for transport planning and appraisal for a strategic model. There is no requirement for this to be collected again.

The data collection exercise will complement this existing data and add more detail in the WSTM for Bromsgrove District. 

The data will be used to verify the travel patterns at a more local level.

Why are the surveys during the school term?

Traffic flows during school term represent typical conditions and the surveys have been scheduled before the autumn half-term school holiday, when there is less traffic at peak times.

Traffic count locations

Who decides on where the traffic counts are located?

Amey and Sweco have reviewed the data contained within the WSTM for Bromsgrove District and specified new or refreshed sites to be undertaken during September and October 2025.

Why are some of the survey locations on minor roads?

The WSTM already contains a large amount of traffic flow data on busier roads. These new counts are intended to enhance the traffic flow data for Bromsgrove District.

Why is there a survey site on Brake Lane, Hagley

Brake Lane and Station Road form the highway link from the western edge of Hagley to Worcester Road and Park Road. The WSTM already has traffic flow data for Station Road, Worcester Road and Park Road and the Brake Lane site is intended to complementthis data. The survey equipment has been removed from Brake Lane and the survey data from this location will be reviewed.

What happens to the traffic data when the survey has finished?

The traffic data will be reviewed and used to undertake checks of the WSTM across Bromsgrove District. Should any further traffic data be required additional surveys may be specified.

Contact information

For more information on the Worcestershire Strategic Transport Model email: sp@worcestershire.gov.uk

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