2000
The Facts
During the first year for which complete records are available,1960, the average daily traffic flow on the M1 near Luton was under 20000 vehicles. In 1992, the last full year for which records were available, the equivalent figure was almost 115000 vehicles, six times greater! Of this approximately 17%, or some 20000, were HGVs (above the national average of 13.7%).

Table 1 Shows the Annual Average Daily Traffic (AADT) flows on the M1 in 1992 between J10 and J15. J10-J11 were busiest with 112300 vehicles and J14 J15 quietest with 90500 vehicles per day.
Link 1992 AADT Flows
Juntion 10 to 11 112300
Junction 11 to 12 106400
Junction 12 to 13 102500
Junction 13 to 14 99800
Junction 14 to 15 90500
Table 2 shows the predicted traffic flows, at the time of the report (1993), giving high and low growth predictions. The high growth prediction for traffic flow between J13 and J14 was 180300 vehicles a day by 2015! A growth in traffic of something between 59% and 87% by 2015 was predicted using the Department of Transports National Road Traffic Forecasts (NTRF).
Link 1998 Low 1998 High 2015 Low 2015 High
Junction 10 to 11 134600 144600 178300 211300
Junction 11 to 12 128300 137600 170000 201000
Junction 12 to 13 123400 132700 163500 193900
Junction 13 to 14 115000 123400 152400 180300
Junction 14 to 15 107300 114900 142200 167900
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