Cov nplaum nres yog cov khoom siv uas tau hnav thaum siv thiab yuav tsum tau hloov thaum hnav rau cov haujlwm ua haujlwm, txwv tsis pub nres tsheb nres thiab tseem ua rau muaj kev nyab xeeb.
Feem ntau, cov ntu nres sab nrauv ntawm lub cev ntaws tau sai sai, thiab lub tsheb nres khau siv rau ib lub sijhawm ntev. Hauv kev tu txhua hnub, nws yuav tsum tau muab sau tseg tias nyob rau hauv kev tsav tsheb li qub, nres nres yuav tsum tau kuaj xyuas txhua zaug 5000 km. Nws yog tsim nyog los xyuas tsis tau tsuas yog qhov seem uas tuab tseem tab sis tseem yog lub xeev ntawm kev hnav cov khau. Kev hnav cov ris tsho ntawm ob sab yog tib yam. Yog tias koj xav hais tias koj tsis yog ib txwm, koj yuav tsum nrog nws tam sim ntawd. Lub pas nrig yuav tsum tsis txhob hloov mus txog thaum txhuam cov khoom sib txhuam lawm. Qee cov tsheb muaj lub nres lub nplaum lub tswb ua haujlwm, thiab thaum siv lub sijhawm coj mus txog, lub metre yuav ceeb toom rau koj los hloov nws.
Tsis tas li ntawd, qee tus neeg siv xav hloov lub tshuab nres thaum lawv tab tom nrhiav ib lub khw muag khoom kho. Qhov tseeb tiag, thaum hloov lub choj, lub nres pawm los ntawm cov khoom qub yuav tsum tau muab hloov, kom lub txiaj ntsig ntawm cov nres nres thiab lub discs nres zoo tshaj thiab hnav yog tsawg. Thaum hloov lub khau nres, cov cuab yeej tshwj xeeb yuav tsum raug siv los thawb lub ciav hlau rov qab. Tsis tuaj yeem rov qab nrog lwm cov laujkaub tais diav, uas yuav ua rau lub ntsuas kub thais rau cov hlua khi kom khoov thiab lub nres pawm yuav tsum nyam.
Tom qab hloov lub tshuab nres nres, nco ntsoov mus rau ntawm lub pas dej kom tshem tawm qhov nruab nrab ntawm cov khau thiab lub nplai tawg, ua rau thawj ko taw tsis nres, uas yog nws cov xwm txheej. Tsis tas li ntawd, nws yuav tsum khiav kom txog 200 km mus rau qhov zoo tshaj plaws braking nyhuv, thiab lub nres pawm uas tau hloov lawm xwb yuav tsum tau tsav nrog ceev faj.