USA loni vividha takala rodla girinchi cheppandi ?
 uunited stetes af americaloni piblic roed sistom pradhaanamgaa haivelu mariyu stanika rahadaarulatoo ruupomdimchabadimdi .  uunited stetes depart ‌ ment af trance ‌ portation yokka fedearl highway administration  (FWHA)  vega parimithulu ,  margam podavu mariyu antharam vento lakshanhaala aadhaaramga roopondinchabadina vidhula aadhaaramga roed ‌ lanu vargeekaristundi .  roed functionla aadhaaramga manam rodlanu krindhi vargaluga vargeekarinchavachhu .
1.  antarraashtraalu mariyu dhamanula vyvasta 
2.  itara dhamanulu 
3.  kalektarlu 
4.  sdhaanikulu 

 rahadari function vargikarana vyavasthaloo antarrashtra vyvasta agrasthaanamlo Pali .  vatilo haivelu mariyu freevelu athyadhika vega parimitulanu kaligi untai mariyu ivi chaaala antharaayam lekunda suduura prayaanaaniki anumatistaayi .  avi khachitamaina pramaanaalu ,  sanketaalu mariyu bhadrataa parigananalatho nirminchabaddaayi .  americaloni praantaalaloo mukhyamaina connectivityni andinchadam valana vatini konnisarlu arterial roadlu ani kudaa pilustharu .  inter ‌ state  95  ledha  I-95  anede uunited stetes yokka turupu teeramlo phloorida nundi maine varku vellae atuvanti rahadaariki udaaharanha .  principle arterial sistom  U.S.  haivelanu kudaa kaligi umtumdi ,  ivi prayaanaaniki madduthugaa antarrashtram laeni praantaalaku connectivityni andistaayi .

 itara dhamanulalo piena vivarimchina antarrashtra vyavasthaku anubandhamgaa umdae freevelu mariyu haivelu kudaa unnayi .  vatiki komchem takuva vega parimithulu unnayi .  avi saadharanamga nagaraalu mariyu pattanha praantaalanu kaluputaayi .  vatini chinna rahadaarulugaa pariganinchandi .  udaharanaga ,  north karolina highway  55 (NC-55)  anede north karolina rashtramloni bahulha praamtiya mariyu pattanha praantaalanu kalipa ooka praadhimika rashtra rahadari damani .

 stanika rahadaarulanu upayoginchi pattanha janabhanu vartinche antarrashtra rahadaarulatoo anusandhaaninchadam kalektarlu keelakam .  avi ekuva antaraayaalanu kaligi untai mariyu podavu thakkuvaga untai .  vatiki takuva vega parimithulu kudaa unnayi  (30-35 mph).  ivi stanika rahadaarulanu arterial haivelatho anusandhaaninche rashtra rahadaarulanu kaligi untai .

 chivaraga stanika rahadhaarulu sanghalu ,  pranthalu ,  polaalu mariyu itara stanika praantaala Madhya connectivityni andistaayi .  varu uunited stetes rahadari vyavasthaloo simhabhaagam .