OK, here’s a sampling of the use of bicycle=designated in 4 areas in England and Wales** - 2 rural, 2 urban, designed to capture a mix of usages. I then picked 4 samples in each area and looked at the tags. In summary, it seems to be mostly a combination of two usages:
- (the largest number): A way was created for the use of people on bicycle. In most cases (but not always) there will be a legal right of access.
- (fewer of these): A way is designated as a “public bridleway” or some sort of “byway”, where there is a legal right of bicycle access.
There’s also 1 (but only one) “highway=path; bicycle=designated;foot=designated” in the sample of 16 too.
The overpass queries and some examples from each area:
Mid Wales
https://overpass-turbo.eu/s/1mjr
235
access = yes
bicycle = designated
designation = unclassified_highway
highway = track
source = GPS, Bing
tracktype = grade3
bicycle = designated
designation = byway_open_to_all_traffic
foot = designated
highway = track
prow_ref = Llanwrthwl 44/2
surface = dirt
tracktype = grade2
bicycle = designated
foot = designated
highway = cycleway
segregated = no
source = NPE
type = route
bicycle = designated
cycleway = track
foot = designated
highway = cycleway
Central London
https://overpass-turbo.eu/s/1mjo
156
bicycle = designated
est_width = 1.75
foot = designated
highway = cycleway
lcn_name = Regent's Canal
lit = no
name = Regent's Canal towpath
oneway = no
segregated = no
surface = paving_stones
towpath = yes
bicycle = designated
foot = designated
highway = cycleway
lit = yes
name = The Broadwalk
oneway = no
segregated = no
surface = asphalt
usability:skate = excellent
bicycle = designated
est_width = 1.25
foot = no
highway = cycleway
lit = yes
oneway = no
segregated = yes
sidewalk = both
surface = asphalt
bicycle = designated
foot = designated
highway = cycleway
layer = -1
lit = yes
name = Regent's Canal Towpath
oneway = no
segregated = no
surface = paving_stones
towpath = yes
Manchester
https://overpass-turbo.eu/s/1mjp
130
bicycle = designated
cycleway:surface = asphalt
foot = designated
footway:surface = asphalt
highway = cycleway
layer = 0
lit = yes
name = Sackville Street
oneway = no
segregated = yes
surface = asphalt
tfgmcitycentre = yes
bicycle = designated
foot = designated
highway = path
segregated = no
source = survey
bicycle = designated
foot = designated
highway = residential
lanes = 1
lit = yes
maxspeed = 20 mph
motor_vehicle = no
name = Thomas Street
oneway = yes
oneway:bicycle = no
sidewalk = both
surface = asphalt
bicycle = designated
foot = yes
highway = cycleway
note = towpath
segregated = no
surface = paving_stones
tfgmcitycentre = yes
towpath = yes
North Pennines
https://overpass-turbo.eu/s/1mjq
600
bicycle = designated
designation = public_bridleway
foot = designated
highway = bridleway
horse = designated
motor_vehicle = no
surface = ground
bicycle = designated
class:bicycle:commute = -3
description = Former narrow-guage quarry tramway
designation = public_footpath
foot = designated
highway = cycleway
lit = no
mtb:scale = 0+
old_name = Weatherhill and Rookhope Railway
oneway = no
prow_ref = StanhopeRookhope FP 21
railway = abandoned
segregated = no
smoothness = bad
surface = gravel
trail_visibility = excellent
bicycle = designated
designation = byway_open_to_all_traffic
foot = designated
highway = service
horse = designated
name = Mount Eff Lane
prow_ref = Marwood BOAT 28
bicycle = designated
designation = public_bridleway
foot = designated
highway = track
horse = designated
prow_ref = 301 026
surface = unpaved
** In England and Wales there’s no assumed right of access (on foot or otherwise). This is different to places such as the Scandinavian countries, and also different to Scotland.