SILVERSTONE

THE PROJECT

Following the problems associated with Silverstone’s 2018 surface and the cancellation of that year’s British MotoGP, Dromo was engaged in late 2018 to investigate the track and define the 2019 resurfacing strategy. Dromo engineered the bespoke asphalt specification and construction methodology; Tarmac carried out the works under specialist guidance. The new surface was laid in June 2019 ahead of the British Formula 1 and MotoGP events.

COUNTRY:

United Kingdom

TEAM LEADER:

Jarno Zaffelli

PROJECT TEAM:

Francesco Grana (Head of Circuit Design),
Federico Vennarucci (Head of Engineering Design),
Alberto Marzi (Technical Director),
Orazio Bonassi (Pavement Specialist),
Paolo Ferrari (Pavement Specialist),
Massimiliano Melloni (Site Manager),
Gabriele Feniello.

CONTRACTOR:

Tarmac Ltd

WORK:

Investigation, engineering, resurfacing

MIX CODENAME:

BriWEC™

YEAR:

2019

Dromo - Silverstone works since 2019

Jarno Zaffelli along with Stuart Pringle, Sebastian Vettel, Charles Leclerc, Connor Campbell, Tim Smith explains the choice of Shell Cariphalte

Project engineering in detail

Diagnosing geometry, drainage and surface performance

The programme began with forensic analysis rather than a like-for-like replacement. Three-dimensional scanning supported the removal of the previous surface and helped identify bumps, gradients and water-management issues. The design introduced geometric corrections and local crowns to encourage drainage while maintaining the fast character of the Grand Prix circuit.

A bespoke mix and joint-free paving strategy

Dromo specified an asphalt solution using a polymer-modified binder and developed it around Silverstone’s grip, durability and ride-quality requirements. Construction planning was equally specific: three paving machines worked in echelon across the track width to reduce longitudinal joints, while automated positioning, temperature sensors and GPS data supported control during laying and compaction.

Verification under a compressed programme

The resurfacing was completed shortly before the Formula 1 weekend, making preparation and real-time decisions essential. Silverstone later confirmed completion of the works and identified Jarno Zaffelli of Dromo as its expert advisor, with Tarmac as construction partner. The project remains a useful example of how survey, mix design, machinery and site management must operate as one system on a racing surface.

Related Dromo capabilities

Project evidence

Verified project register

Resurfacing, operational review and risk assessment.

The register records several distinct Silverstone assignments. They are presented as separate phases, without merging their scope.

Surface

Circuit resurfacing

Formula 1 circuit resurfacing assignments are documented in the project register.

Operations

Ongoing circuit support

A later record identifies continued work at the operating venue.

Assessment

Post-race track walk

A separate phase records a post-race inspection and risk-assessment scope.

Project evidence

From the Dromo project archive.

Dromo project and technical archive. Images are selected for public-safe editorial use; confidential project data is excluded.

Track inspection and surface work at Silverstone Circuit
Specialist inspection links the finished racing surface to measurable performance.

Delivery on site

The surface was engineered and delivered as one continuous process.

Dromo and Silverstone personnel coordinating the 2019 resurfacing works
Track, contractor and engineering teams coordinated decisions directly at the work face.
Night milling operations during the Silverstone Circuit resurfacing
The programme continued through the night to protect the circuit calendar and control each construction stage.
Paving and compaction operations at Silverstone Circuit
Paving geometry, compaction and interfaces were monitored as part of a single performance-led delivery sequence.
Completed racing surface and geometric detailing at Silverstone Circuit
The finished surface records the relationship between racing line, kerbs, run-off and track geometry.