But it can't be any nearer. The line crosses London Road (the nearest it gets to the town centre) and the Weaver and Dane rivers on a viaduct. It is convenient for Tesco.
It could still be more convenient by being the other side of Middlewich Road. Currently you have to cross both Middlewich Rd and either Victoria Rd or Manchester Rd to get to the town centre and the crossings all go to the green man at the same time and don't stay on green long enough to cross both roads in a single turn unless you cross in the wrong place or start crossing before the green man comes up.