The additions would include service along Main Street from the end of the current project to the University of Missouri- Kansas City campus, along Independence Avenue, from downtown to Benton Boulevard and along Linwood from Main Street to Prospect Avenue.
The recommendation also includes a new Prospect MAX bus line that would run along Prospect Avenue from 12th Street to 75th Street.
Vince Gauthier, director of planning for architecture firm BNIM, said adding a bus line to the overall system is expected to add 20-35 percent new riders and it makes it easier to get federal funding.
Adding the three streetcar lines will cost about $471 million and the Prospect MAX bus line will cost about $43 million, according to BNIM.
Gauthier said a plan will not move forward without a 50 percent match from the federal government; but before planners can seek federal dollars, city leaders and residents need to authorize local funding.
The recommendation will be presented to council members on Thursday.