Imilinganiselo esemgangathweni yemiqondiso yendlela yasezidolophini

Siqhelene nayoiimpawu zendlela yasezidolophinikuba zinento yokwenza ngqo nobomi bethu bemihla ngemihla. Zeziphi iintlobo zemiqondiso ekhoyo yezithuthi ezindleleni? Yeyiphi imilinganiselo yabo eqhelekileyo? Namhlanje, i-Qixiang, umzi-mveliso weempawu zendlela, iya kukunika isingeniso esifutshane kwiintlobo zeempawu zendlela yasezidolophini kunye nemilinganiselo yazo eqhelekileyo.

Iimpawu zendlela zizixhobo zendlela ezisebenzisa umbhalo okanye iisimboli ukuhambisa isikhokelo, izithintelo, izilumkiso, okanye imiyalelo. Zikwabizwa ngokuba ziimpawu zendlela okanye iimpawu zendlela zasezidolophini. Ngokubanzi, iimpawu zendlela zenzelwe ukhuseleko; ukuseta iimpawu zendlela ezicacileyo, ezicacileyo neziqaqambileyo ngumlinganiselo obalulekileyo wokuphumeza ulawulo lwendlela nokuqinisekisa ukhuseleko lwendlela yokuhambahamba kakuhle.

I. Zeziphi iintlobo zeempawu zendlela zasezidolophini ezikhoyo?

Iimpawu zendlela yasezidolophini zihlulwe ngokubanzi zibe ziimpawu eziphambili kunye neempawu ezincedisayo. Ngezantsi yintshayelelo emfutshane:

(1) Iimpawu ezilumkisayo: Iimpawu ezilumkisa izithuthi nabahamba ngeenyawo kwiindawo eziyingozi;

(2) Iimpawu ezithintelayo: Iimpawu ezithintelayo zithintela okanye zithintela indlela yokuziphatha kwezithuthi kunye nabahambi ngeenyawo;

(3) Iimpawu ezisisinyanzelo: Iimpawu ezisisinyanzelo zibonisa indlela yokuhamba kwezithuthi nabahambi ngeenyawo;

(4) Iimpawu zokukhokela: Imiqondiso yesikhokelo idlulisela inkcazelo ngendlela, indawo, nomgama.

Iimpawu ezincedisayo zincanyathiselwe ngezantsi kweempawu eziphambili kwaye zisebenza umsebenzi oncedisayo wokucacisa. Zihlelwe ngokwezo zibonisa ixesha, uhlobo lwesithuthi, indawo okanye umgama, isilumkiso, kunye nezizathu zokungavunyelwa.

II. Imilinganiselo esemgangathweni yemiqondiso yendlela yasezidolophini.

Ngelixa imilinganiselo yemiqondiso yendlela eqhelekileyo ilungiswa ngokweemfuno zabathengi, abavelisi beempawu zendlela bayazi ukuba imilinganiselo yemiqondiso ayinyanzelekanga. Ngenxa yokuba iimpawu zigcina ukhuseleko lwendlela, ukubekwa kwazo kulandela imigangatho ethile; kuphela imilinganiselo efanelekileyo inokulumkisa ngokufanelekileyo kwaye ilumkise abaqhubi.

(1) Iimpawu ezinxantathu: Ubude becala leempawu ezinxantathu yi-70cm, 90cm, kunye ne-110cm;

(2) Iimpawu ezingesetyhula: Ubukhulu beempawu ezijikelezayo yi-60cm, 80cm, kunye ne-100cm;

(3) Iimpawu zesikwere: Iimpawu zesikwere ezisemgangathweni ziyi-300x150cm, 300x200cm, 400x200cm, 400x240cm, 460x260cm, kunye ne-500x250cm, njl., kwaye ziyakwazi ukulungiswa ngokweemfuno zabathengi.

III. Iindlela zoFakelo kunye neMithetho yemiqondiso yendlela yasezidolophini

(1) Iindlela zokufakela kunye nemimiselo ehambelanayo yeempawu zendlela: Uhlobo lwekholamu (kubandakanywa ikholamu enye kunye nekholamu ephindwe kabini); uhlobo lwe-cantilever; uhlobo lwe-portal; uhlobo oluqhotyoshelweyo.

(2) Imigaqo emalunga nofakelo lweempawu zendlela: Incam engaphakathi yophawu lwepali kufuneka ubuncinane ibe yi-25 cm ukusuka kumphezulu wendlela (okanye egxalabeni), kwaye isiphelo esisezantsi sophawu kufuneka sibe yi-180-250 cm ngaphezu kwendlela. Kwiimpawu ze-cantilever, umgca osezantsi kufuneka ube yi-5 yeemitha ngaphezu kwendlela ye-Class I no-II yeendlela ezihamba phambili, kunye ne-4.5 yeemitha kwiindlela ze-Class III kunye ne-IV. Umphetho wangaphakathi wesithuba kufuneka ube ubuncinane be-25 cm ukusuka kwindlela (okanye igxalaba).

Oku ngasentla sisishwankathelo seentlobo kunye nemilinganiselo esemgangathweni yeempawu zendlela yasezidolophini eziqulunqwe nguQixiang. Ukongezelela, isikhumbuzo esinobuhlobo: kuphela iimpawu ezihambelana nemigangatho yelizwe ezinokugcina ngokufanelekileyo ukhuseleko lwezithuthi. Kuyacetyiswa ukuba iimpawu zakho zetrafikhi zenziwe ngumntu owaziwayoumenzi weempawu zendlela.