The  main  idea  of  the  articles  is  about  the  adavantages  of  limiting  car  usage .The writers  explain  how  by limting  car usuage  it  can  help  us  out. There  are  many adavantages  of  limting  car  usage.

One  of  the  most  important  adavantage  of  limting  car  usage  is  that  it  would  be lowing  the  pollution  by  lowing  the  pollution  it  clear  the  air  way  around  the  gobal city.  "Congestion was down  60  percent  in  the  capital  of  france  after  fivedays  of  intensifying  smog."smog  by  meaning  pollution  went  down  just  60  percent  in  five  days. Thats  a  great  adavantage  just  by  limting  car  usuage. In  source  number 1  explains that " Passenger  cars  are  responsible  for  12  percent  of  greenouse  gas emissions  in  Europe.. and up  to  50  perecnt  in  some  car-intensive  areas  in  the  Untied States." We  as  a  country  shoud  lower  that  and  the  best  way  is  to  limting  car usuage . Limting car usage is one of te some advantges to lowering pollution ( greenhouse gas, smog).

By limiting car usage it can make a alot adavantges like bulidng better communites in soby by limting car usage there like place way closer ." in this new approach stores are places a walk away, on a main street, rather than in malls along some distant highway". this mean we will don't have dependent on cars to take us to places that we can walk to or ride bikes to. In source number 3 by bogota limting are use "Parks and sports centers also have bloomed throughout the city; uneven pitted sidewalks have been replaced by broad, smooth sidewalks; rus our restritions have dramatically cut traffic; and new restaurants and upscale shoping districts have cropped up". this is just making a better communite just by limiting car usage.

they are many adavantages to limitng car usuage we shoud just have a car free day it would have so many chances of making the Untied States are better place a better country that is already is.