GROTON -- Proponents of a medical office building to be located off Route 119 continued to move their plans forward against a strong headwind from the Planning Board's engineering consultants.

The action took place at the board's meeting of Oct. 24, when landowner Peter Myette appeared with a phalanx of experts to present changes in building plans made over the last several weeks and to counter points raised by the board's consultants.

Doing business as PCM Realty Trust, Myette has proposed a plan to develop his 3-acre lot at 120 Boston Road to construct a two-story building intended for medical office space.

But since first proposing his plans earlier in the year, Myette has been opposed by Avalon Home Design owner Dottie Mack, whose own building and property abuts Myette's and shares with it both access to Boston Road and a septic system.

Myette engineer Stan Dillis told board members that the project has been redesigned such that all activity that was to have taken place on the abutter's side of the driveway was eliminated.

Now, said Dillis, drainage on the property has been corrected so as to keep and dispose of all runoff on Myette's land.

Furthermore, added Ken Cram, a traffic engineer working on behalf of Myette, discussions with representatives from the Massachusetts Department of Transportation (DOT), which has authority over Route 119, allowed for the elimination of one turning lane at the access onto the highway.

As a result, with only one lane in and one lane out, intrusion on the abutter's side of the driveway entrance was further eliminated.

The 24-foot wide access way, said Cram, would give improved sight-lines for traffic entering from the highway and leaving the property. Sight-lines will be improved further with trimming of undergrowth across the street, already approved by the town.

"Safety was our paramount concern," said Cram of the final plans.

Following the changes made in the design plan, which included minor architectural features of the main building itself, the board's engineering consultant read off a long list of concerns covering everything from lights to curbing.

Running quickly through the list, Dillis said most of the points have been or would soon be addressed. For the remainder, a series of waivers to the town's zoning bylaws will be applied for as the special permit application process continues.