The Department for Transport has issued an important update on box junction rules, following a petition calling for change to 'give drivers more leniency'. Box junctions are road markings of criss-cross yellow lines that help keep intersections clear, keep traffic flowing, and avoid gridlock. Rule 174 of the Highway Code currently stipulates that you 'must not enter the box until your exit road or lane is clear' unless you are turning right or are only stopped from doing so by oncoming traffic