Another crazy Victorian 'Spanish custom" is the insistence to use only turnouts and crossovers at double track junctions like Robinsons Road rather than a convential parallel double tracked junction as used throughout Europe . So at Robinsons Road we have 3 sets of points , blades and motors to maintain, rather than two as incurred with a standard double track junction with a diamond crossing . l
Four turnouts, actually.
Fixed diamond crossings are expensive to maintain, particularly as the speed rises. You can get strong K crossings in specially treated steel, but these cost serious dollars and can't change physics. They still take a battering, they last longer, but when they need to be renewed they cost more.
The next step up is some form of switched diamond. Two options are used: a movable point diamond, or two turnouts toe to toe. A little thought reveals that, conceptually, there is not that much difference between the two. Both need two V crossings. Both need two sets of points and two sets of FPLs. You might be able to get away with one point motor driving both switches in a movable point diamond, but point motors per se are relatively cheap. Impact forces, hence maintenance, are higher with a movable point diamond, and adjusting the detection is a continual headache. Two turnouts use standard components, hence are cheaper in first cost and in maintenance. Turnouts can be tamped by standard tampers, movable point diamonds can't be. Two turnouts require much greater track length, which is a serious problem in cramped areas.
In summary, using two turnouts toe to toe instead of a movable point diamond is a perfectly reasonable approach where you have the room.