one train rear-ended another
... that one train rear-ended another at Singapore's Joo Koon station last month because its new signalling system determined the first train to be half its actual length?
... that <b id="mwAcU"><a href="./Joo_Koon_rail_accident" id="mwAcY" rel="mw:WikiLink" title="Joo Koon rail accident">one train rear-ended another</a></b> at Singapore's <a class="mw-redirect" href="./Joo_Koon_MRT_Station" id="mwAcc" rel="mw:WikiLink" title="Joo Koon MRT Station">Joo Koon station</a> last month because its new <a href="./Railway_signal" id="mwAcg" rel="mw:WikiLink" title="Railway signal">signalling system</a> determined the first train to be half its actual length?