They are best suited where automation is sensible, but the low throughput allows for using one ASRS machine to serve several aisles. Curve-going SRM compete with conventional warehouses that can be served with stacker trucks. SRM have the benefit of requiring fewer staff and lower operating and maintenance costs. Multi-shift operation is also possible cost-effectively. Process safety can be increased as compared to stacker warehouses, throughput can be increased and operator errors can be minimised. The curve-going SRM can serve several racking aisles by leaving the aisle and running to another aisle via a rail and switch system. This system offers the benefits of an automatic warehouse, at lower investment costs than the aisle-specific SRM solution. Curve-going SRM also offer the benefit of flexibility. The warehouse can be supplemented by another SRM until each aisle has an SRM installed if the throughput requirements increase. Initial investment can thus be kept low. The small curve radius permits spacesaving storing of racking aisles. This leads to optimised use of existing warehouse space.