Resilience measure: Sunken lane

definition

A sunken lane (also hollow way or holloway) is a road or track which is significantly lower than the land on either side, not formed by the (recent) engineering of a road cutting but possibly of much greater age. Various mechanisms have been proposed for how holloways may have been formed, including erosion by water or traffic; the digging of embankments to assist with the herding of livestock; and the digging of double banks to mark the boundaries of estates. (Wikipedia, Sunken lane, accessed on Sept. 2016 ).
Once formed, hollow-ways often remain in use for long periods and become drainage gullies for surface water, which deepens them further. (Historic England, Pre-industrial Roads, Trackways and Canals, accessed on Sept. 2016).

Co-benefits and impacts

Hollow roads or sunken channels can hold and drain much more water than gutters. Slopes are often less of an obstacle for covering distances greater than the 50 metres because the distance to buildings is often greater, and therefore the channel level can be varied. Additionally, bikes, cars, etc. also use these channels when it rains.
(Urban Green-Blue Grids for sustainable and resilient cities, Hollow roads, accessed on Sept. 2016).

Related Links

Approaches (Show all)

Protection



Time scales (Show all)

Medium term

Synonym of Resilience Measures (Show all)

Hollow way
Hollow road
Sunken channel

Measure types (Show all)

Environmental

Problem types (Show all)

Pluvial




Last modified: Sept. 15, 2016, 11:11 a.m.