M621 motorway

The M621 is a short loop of motorway in England that takes traffic into central Leeds between the M1 and M62 motorways.

M621
Route information
Length7.7 mi (12.4 km)
Existed1972–present
HistoryConstructed 1972–75
Major junctions
FromGildersome
 
M62 motorway

M1 motorway
ToRothwell
Location
Primary
destinations
Leeds
Road network

History

The first section of the M621 to open, known at the time as the 'South West Urban Motorway', extends from the M62 to Junction 3 in central Leeds where it used to terminate at a roundabout which was also the terminus of the M1 motorway. This section opened in stages, from the M62 to Junction 1 in 1971, and from Junction 1 to Junction 3 in 1973.[1]

When the M1 was diverted away from Leeds when the 'M1 – A1 Lofthouse to Bramham' extension opened in 1999[2] adjustments were made to Junction 3 and the Leeds section of the M1 was re-designated as M621 (Junctions 3–7).[1]

Junctions

M621 junction 4 sliproad at Hunslet.
M621 motorway junctions
Eastbound exits Junction Westbound exits Coordinates
Start of motorway
Leeds, Batley A62
Morley A650
M62, J27 Manchester, Bradford M62
Bradford (E) A62, A650
53.74699°N 1.64555°W / 53.74699; -1.64555 (M621, Start of motorway)
Leeds (W), Leeds/Bradford A6110 J1 Ring Road, Leeds/Bradford A6110
Dewsbury (A653)
53.77540°N 1.58195°W / 53.77540; -1.58195 (M621, Junction 1)
A643
Wetherby (A58)
Harrogate (A61)
York (A64)
J2 A643 53.78001°N 1.56838°W / 53.78001; -1.56838 (M621, Junction 2)
No access J2a Beeston, Holbeck 53.78334°N 1.55534°W / 53.78334; -1.55534 (M621, Junction 2a)
Leeds Centre A653
Beeston, Holbeck
J3 Leeds Centre (S & W), Holbeck A653 53.78460°N 1.54701°W / 53.78460; -1.54701 (M621, Junction 3)
The NORTH (M1)
Hunslet A61
J4 Harrogate A61, Leeds Centre (N & E) 53.78083°N 1.53916°W / 53.78083; -1.53916 (M621, Junction 4)
No access J5 Hunslet, Beeston 53.77466°N 1.53989°W / 53.77466; -1.53989 (M621, Junction 5)
Middleton J6 No access 53.77045°N 1.53427°W / 53.77045; -1.53427 (M621, Junction 6)
The NORTH (M1, A1), Pontefract, Stourton A639 J7 Stourton 53.76754°N 1.51457°W / 53.76754; -1.51457 (M621, Junction 7)
The SOUTH, London, Wakefield M1, Hull (M62) M1, J43 Start of motorway 53.75196°N 1.51633°W / 53.75196; -1.51633 (M621, Start of motorway)
M1 and M621 interchange
A view of central Leeds from the M621, Junction 6
Looking north east with Leeds in the distance
gollark: Yes.
gollark: ```sqlnonlocality=# EXPLAIN ANALYZE SELECT url, ts_rank(fts, query) AS rank, ts_headline(fts::text, query, 'MaxWords=60') FROM pages, websearch_to_tsquery('bee') query WHERE fts @@ query ORDER BY rank LIMIT 1; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------- Limit (cost=860.79..861.06 rows=1 width=96) (actual time=35935.590..35935.594 rows=1 loops=1) -> Result (cost=860.79..874.83 rows=52 width=96) (actual time=35935.587..35935.589 rows=1 loops=1) -> Sort (cost=860.79..860.92 rows=52 width=178) (actual time=35934.109..35934.111 rows=1 loops=1) Sort Key: (ts_rank(pages.fts, query.query)) Sort Method: top-N heapsort Memory: 25kB -> Nested Loop (cost=0.25..860.53 rows=52 width=178) (actual time=444.148..35932.932 rows=349 loops=1) Join Filter: (pages.fts @@ query.query) Rows Removed by Join Filter: 10272 -> Function Scan on websearch_to_tsquery query (cost=0.25..0.26 rows=1 width=32) (actual time=0.038..0.041 rows=1 loops=1) -> Seq Scan on pages (cost=0.00..728.95 rows=10495 width=142) (actual time=10.189..289.581 rows=10621 loops=1) Planning Time: 0.184 ms Execution Time: 35935.637 ms(12 rows)```
gollark: What? Why does it say it's doing a sequential scan now? Æ all is bee.
gollark: Slower, even.
gollark: Oops, it turns out I'm accidentally sorting by it instead of the rank, but it's equally slow after fixing that.

References

  1. "M621 motorway". roads.org.uk.
  2. "M1 – A1 Lofthouse to Bramham". Highways Agency. Archived from the original on 1 March 2012.

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