The M42 MOTORWAY is a major road in England. The motorway runs north
* 1 History
* 1.1 Planning and construction * 1.2 Operational history
* 2 Features
* 2.1.1 Managed motorways and Active Traffic Management
* 3 Incidents and accidents
* 4 Junctions
* 4.1 Coordinate list
* 5 See also * 6 References * 7 External links
PLANNING AND CONSTRUCTION
The M42 was first announced in 1972.
The first section opened in November 1976 linking Birmingham
International Airport with the
The curve around the south-eastern side of
In 1987 the section to the A38 at
Bromsgrove , some 15 miles (24 km)
A planned section north of the M6 running to the M1 near Nottingham was never constructed as planned being replaced by the A42 link.
Junction 3a was remodeled to give priority to traffic operating
between the now westbound section of the M42 and the new M40 motorway
Active Traffic Management with hard shoulder running and variable speed limits were introduced in 2006.
Since the 1980s, there have been constant plans to build a new
service station on the motorway south of
BIRMINGHAM OUTER RING ROAD
Along with sections of the M5 and M6, the southern sections of the
M42 form the
Managed Motorways And Active Traffic Management
Active Traffic Management (ATM) was launched as a pilot scheme on the M42 operating between junction 3a and 7 with mandatory variable speed limits, hard shoulder running, better driver information signs and a new incident management system. This system allows operators to open and close any lane to traffic in order to help manage congestion or an incident. Since it started in 2006 journey times have decreased by 26% northbound and 9% southbound and journey time variability has decreased by 27%. Due to the success of the trial this system was later extended northbound to junction 9 of the M42 (and onto the adjacent M6 to Junction 5) and southbound along the M40 to Junction 15 as part of the first phase of a nationwide roll out of the rebranded 'Managed motorways; concept.
INCIDENTS AND ACCIDENTS
* A multiple vehicle collision involving 160 vehicles occurred on 10
March 1997 in fog in Bromsgrove,
Data from driver location signs are used to provide distance and carriageway identifier information. If a junction extends over several hundred metres and both start and end points are known, both are shown.
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M42 MOTORWAY JUNCTIONS
MILES KM NORTHBOUND EXITS (B CARRIAGEWAY) JUNCTION SOUTHBOUND EXITS (A CARRIAGEWAY) COORDINATES
1.4 1.6 2.3 2.6 No access J1 Bromsgrove A38 52°21′20″N 2°02′45″W / 52.355618°N 2.045828°W / 52.355618; -2.045828 (M42, J1)
14.2 14.5 22.8 23.3 Shirley A34 J4 Shirley A34 52°22′47″N 1°47′11″W / 52.379699°N 1.786523°W / 52.379699; -1.786523 (M42, J4)
36.4 The north west,
26.7 42.9 Lichfield, Coleshill A446 Sutton Coldfield , Kingsbury A4097 J9 Lichfield, Coleshill, A446 Sutton Coldfield, Kingsbury, A4097 52°32′20″N 1°43′35″W / 52.538818°N 1.726313°W / 52.538818; -1.726313 (M42, J9)
39.7 40.0 63.9 64.4 Burton upon Trent A444 J11 Start of motorway 52°41′20″N 1°32′54″W / 52.688987°N 1.548450°W / 52.688987; -1.548450 (M42, J11)
Road continues as A42 to
East Midlands Airport
* Distances in kilometres and carriageway identifiers are obtained from driver location signs /location marker posts. Where a junction spans several hundred metres and the data is available, both the start and finish values for the junction are shown.
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
* Incomplete access
* ^ 52°20′56″N 1°48′35″W / 52.3488°N 1.8097°W / 52.3488; -1.8097 (Junction 3a) Termination point M40 * ^ 52°28′39″N 1°42′39″W / 52.4774°N 1.7109°W / 52.4774; -1.7109 (Junction 7) Southern M6 / M42 intersection * ^ 52°29′01″N 1°42′38″W / 52.4837°N 1.7106°W / 52.4837; -1.7106 (Junction 7a) Northern M6 / M42 intersection * ^ 52°41′36″N 1°32′49″W / 52.69346°N 1.54695°W / 52.69346; -1.54695 (Junction 11) J11, A42