Kuthamanga kwapamwamba kwamitundu iwiri kuli ndi njanji yokhazikika pamutu uliwonse pamphepete mwa msewu uliwonse - izi zimathandizira kuti magalimoto amayendetsa mabulosi ndikukweza pamwamba pa dongosolo lanthakay. Pamwamba pathanthwe pamayendedwe othamanga pamwamba pa matayala apamsewu, potero ndikupereka malo okwera m'malo omwe amaletsedwa ndi kutalika.
Pamwamba pachabe chachabera ndi chisankho chabwino chogwiritsira ntchito sing'anga, ndipo nthawi zambiri amagwiritsidwa ntchito pazitsulo, zotsalira, zouma zolimba, monga momwe zimakhalira ndi zotupa zapamwamba kwambiri. Pansi pa kugwirira ntchito kumapereka kusinthasintha, kuthekera, ndi mayankho a ergonomic, pomwe apamwamba kwambiri amayendetsa ma ranet am'mimba amapereka zabwino kwambiri komanso malo okulirapo pamwamba.
Pamwambapa ranes yoyendetsa pamwamba zidapangidwa kuti ziziyenda pamwamba pa njira yanthaka, yomwe imathandizidwa ndi mizati kapena mizere yomanga. Akatswiri asanu ndi awiri ndipo amamanga mitundu yonse ya middridge minroad kuphatikiza (koma osakhala ndi ma crane owirikiza kawiri kapena osakwatiwa), omwe amatha kukhazikitsidwa ngati kuthamanga kapena pansi. Pamwamba zokutira zopitilira muyeso zitha kukhazikitsidwa ngati mbeta imodzi kapena iwiri ya Bridge GRIGH ndipo ndiyabwino kwambiri.
Pamwamba pathanthwe pamutu woyenda pa mlatho, ndipo pansi pake pamayendedwe okwera. Amakhala pansi pernes nthawi zambiri amagwiritsidwa ntchito muntchito zopepuka, monga kupanga malo opepuka, mizere yopepuka, ndi zina zopangira, pomwe zimapangidwa, zomera zazikulu, ndi stamping.