M32 motorway 75,000 vehicles. Despite this, the M32 is frequently congested as it is a popular route into the centre of Bristol. During the morning rush hour, queues can tail back onto the motorway from the city centre. In 2014, the Highways Agency reported that the M32 between junctions 1 and 2 was the most unreliable motorway journey along the entire M4 corridor between London and South Wales, with over 56 per cent of journeys taking longer than predicted. The problem is exacerbated whenever there is an incident on the M4 around Bristol, as drivers attempt to use the M32 as a
M4 (computer language) FreeBSD, NetBSD, and OpenBSD provide independent implementations of the m4 language. Furthermore, the Heirloom Project Development Tools includes a free version of the m4 language, derived from OpenSolaris. "GNU m4" is an implementation of m4 for the GNU Project. It is designed to avoid many kinds of arbitrary limits found in traditional m4 implementations, such as maximum line lengths, maximum size of a macro and number of macros. Removing such arbitrary limits is one of the stated goals of the GNU Project. The GNU Autoconf package makes extensive use of the features of GNU m4. GNU m4 is currently maintained