Tarmac
The second edition of The Dictionary of Urbanism by Rob Cowan, published in 2020, suggests that tarmac can mean:
- ‘A generic name for asphalt surfaces.’
- ‘A patented type of road-surfacing material composed mainly of compacted tar and aggregate. The word is a shortening of tarmacadam, a word combining tar- with the name of the engineer and road-builder John McAdam (1756–1836), who invented a process for building roads with a smooth, hard surface (macadam).’
It suggests that macadam can refer to:
- ‘A type of road construction with a smooth, hard surface, in which layers of compacted, crushed stone are bound with stone dust . It was pioneered by the engineer and road-builder John McAdam (1756–1836).’ Also referred to as stone macadam.
- ‘A similar type of road construction but with the addition of tar as a binder.’ Also referred to as bitumen macadam (bitmac).
[edit] Related articles on Designing Buildings Wiki
- Asphalt.
- Bituminous mixing and laying plant.
- Britain's historic paving.
- Coal holes, pavement lights, kerbs and utilities and wood-block paving.
- Glossary of paving terms.
- Code of Practice for Ironwork Systems Installation and Refurbishment.
- Hazard warning surfaces.
- Highway.
- Highway drainage.
- How to lay block paving.
- Pavement.
- Permeable pavements.
- Pervious bitmac.
- Road paving.
- Types of road and street.
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
Construction Management, 8 July
NEETs crisis drives interest in trades, but apprenticeships barriers remain.
Passive fire protection webinar
MEP services penetration seals.
Where its at podcast (and video) - The role of the Architectural Technologist as an Expert Witness.
More than 200 remarkable buildings added to SAVE’s Buildings at Risk register.
Government scraps pre-application consultation for Nationally Significant Infrastructure Projects.
Historic England and infrastructure
New projects offer opportunities for the historic environment and local communities.
Construction Management, 2 July
Construction deaths halve in two years.
Green Book changes to drive investment in all parts of UK.
Minimum energy efficiency standards (MEES)
CIAT briefing on response to consultations for privately rented non-domestic properties.
Connect, collaborate, shape the future
Registration now live for UK Construction Week Birmingham.
CIOB announces Saul Humphrey FCIOB as new President for 26/27 term.
A quick, simple, and zero-bills solution to prevent overheating.

















