The Office for National Statistics (ONS) has adopted the term and defines it as any 1 square kilometre (0.39 sq mi) of the country which lies within four hours' drive of 90% of the British population.[1] This provides a non-contiguous area of 239 square miles (620 km2) in the West Midlands, running broadly between Lichfield, Cannock, Wolverhampton, Solihull, Redditch and Nuneaton, with outlying patches at Bromsgrove and to the south of Coventry.[1]
The ONS also noted that other parts of the country, outside its golden triangle, have seen recent growth in logistics operations, including the East of England and Yorkshire and the Humber regions, which were not previously focuses for the logistics industry.[1] The ONS cited changes in shopping habits, the coronavirus pandemic and post-Brexit adjustments as potential causes of the industry's expansion.[1] Wang and Pettit note that there is a considerable benefit for retail warehouses to be located close to the main parcel distribution hubs, which are traditionally sited in the Midlands. Being closer to a hub allows the retailer to set later ordering times on its website for next day delivery.[4]
According to the ONS, in 2021, the UK had 88% more transport and storage business premises than in 2011 and 21% more than in 2019; the number of road transport freight businesses increased by 114% between 2011 and 2021 and the number of postal and courier businesses by 147%.[1] They also note that it was the East Midlands, rather than the West Midlands, that accounted for the largest regional warehouse construction spending in 2021 (the West Midlands was the fourth-highest spending region behind Yorkshire and the Humber and the East of England).[1] However, the West Midlands recorded the largest increase in heavy goods vehicle traffic between 2011 and 2019, at 15%.[1] Ozlem Bak of Brunel University considers the golden logistics triangle a result of the deindustrialisation of the Midlands away from mining and heavy industry, which required replacement industries with logistics businesses being attracted to the area by incentives to create jobs.[6]