The LUKS software tool is an integrated system for several types of railway operations research. LUKS is modular in design and comprises several core components plus modules with which to compile timetables, subject lines and junctions to analytical examinations and simulate the timetabling and operational processes.

During the last years, LUKS became the standard tool for capacity assessment of German DB Netz AG, the standard tools for simulation at INFRABEL as well as the default system to answer capacitive questions at EBA (German railway authority). It is used in Norway at Jernbanedirektoratet for simulation purposes as well as at Azerbaijan Railways CJSC for timetabling.