Maximum　ceiling　temperatures　in　a　tunnel　with　different　ventilation　velocities　with　three　heat　release　fires　are　studied　experimentally　and　theoretically.　This　article　investigates　the　ventilation　velocity　effects　on　maximum　ceiling　temperature　combustible　materials　around　ignition　source　in　tunnel　fires.　Several　fire　experimental　tests　are　conducted　with　longitudinal　ventilation　velocity　changes　in　a　small-scale　tunnel　(23　m　in　length,　2　m　in　width,　and　0.98　m　in　height),　where　three　heat　release　fires　(237,　340,　and　567　kW)　and　their　corresponding　values　in　the　real　tunnel　are　20,　30,　and　50　MW,　respectively.　This　article　modifies　the　current　temperature　prediction　model　taking　the　ignition　materials　near　the　fire　source　into　account　in　tunnels.　Results　show　that　the　ceiling　maximum　temperature　increases,　corresponding　to　the　burn　time　when　other　experimental　conditions　remain　unchanged　for　a　given　fire　heat　level　source.　The　ceiling　temperature　reduces　quickly　when　the　ventilation　velocity　is　increased　from　0.5　to　2.0　m/s.　Moreover,　this　article　proposes　an　equation　that　can　be　used　to　estimate　the　ceiling　maximum　temperature　variation　value　with　three　heat　release　fires　in　tunnels.　Finally,　experimental　results　are　also　compared　with　the　tunnel　ceiling　temperature　attenuation　equations　established　by　Alpert,　Heskestad,　and　Ingason.　The　equation　proposed　in　this　article　appears　to　provide　better　estimates　of　ceiling　temperature　variation　than　the　Kurioka　model　developed　in　their　scaled　experiments.　The　prediction　agrees　well　with　the　experimental　and　measured　data　by　the　modified　equations　of　this　article.