MILAN (Reuters) – Italian infrastructure conglomerate Atlantia, whose controlling investor aims to take it private with the help of Blackstone, improved its 2022 guidance after posting a 18% year-on-year rise in revenue in the first half. Benetton-controlled Atlantia, which has activities spanning from Italy to Spain and South America, said on Thursday that sales between January and June came in at 3.3 billion euros ($3.38 billion) driven by a recovery in airport and motorway traffic. As a result, the group expects consolidated 2022 revenue to total around 6.8 billion euros in 2022, improving …