DENVER -- Voters approved it, now Regional Transportation District officials are taking their new plans for the east Interstate 70 corridor to the public. The I-70 improvements are part of the FasTracks initiative voted on in November.

On Wednesday night, RTD officials unveiled some of their ideas to improve traffic flow on I-70 between Interstate 25 and Tower Road -- the highway that stretches to Denver International Airport.

Several ideas are being considered in the environmental impact study. The options include keeping I-70 on the viaduct or moving the interstate lower than it is now between Brighton Boulevard and Colorado.

RTD and the Colorado Department of Transportation are also considering adding a commuter train with eight stops or a light rail with 13 stops between Union Station and DIA.

"Both of the alternatives look at going from Union Station out to DIA and both alternatives look at Union Pacific Railroad's existing line," said RTD's Mike Turner.

The commuter rail would require a bigger diesel train and would require new lines to be built that would be adjacent to existing rail lines. Light rail would run on electricity but it will also require a new track.

The highway proposals for I-70 also involve adding lanes to I-70's eastern corridor and also adding optional toll lanes between Colorado Boulevard and I-225.

Another option is to create another alignment of I-70 that would take the highway north, from Washington Boulevard to 54th Avenue, to Highway 270 and then back to I-70.

Some residents who heard about the plans at the Montbello Recreation Center are concerned about the impact of these changes.

"With the widening in the highway, there's nowhere to widen it. They're going to have to take people's property," said Montbello resident Bennie Miliner.

"People in Globeville and Swansea, they've paid the cost for years of having I-70 divide their neighborhood," another resident said.

Engineers say they're taking all public input into consideration.

If you missed Wednesday night's open house, and would like to get a closer look at the proposals there is another I-70 corridor meeting scheduled for Thursday from 5 p.m. to 8 p.m. at Bruce Randolph Middle School at 3955 Steele Street.

The process is still in its early phases. The environmental impact study should be complete by the end of the year and final recommendations aren't expected until 2007.

More than 130,000 cars travel on the I-70 highway extending east every day.