The Post printed a letter {Maryland Weekly, Jan. 21} from Jeff Noah, chairman of the Citizens Committee of the Village of North Chevy Chase, titled "Relocate the Ramp -- and Correct a Mistake." Mr. Noah's letter contains a number of inaccuracies. He alleges, for instance, that the proposed widening of Connecticut Avenue is not related to the moving of the ramp, but is instead designed to improve traffic conditions at the Connecticut Avenue-Jones Bridge Road intersection. This is absolutely false. The State Highway Administration proposal shows, as was confirmed at a recent public hearing before the Maryland National Capital Park and Planning Commission, that the proposed widening of Connecticut Avenue will not improve traffic flow at that intersection. Its sole purpose is to keep traffic from backing up through the new intersection, which will be created by moving the ramp. Rather than aiding traffic flow on the avenue, it will create a new intersection and a new traffic light to further impede traffic on an already overcrowded road.

Mr. Noah also maintains that it is inexplicable that the ramp was located on Kensington Parkway to begin with. The Connecticut Avenue-Beltway interchange is one of the safest on the Capital Beltway, precisely because it was spread out as it is. This is certainly adequate explanation for the original engineering decisions made back in the 1950s.

Finally, Mr. Noah asserts that the people living on Connecticut Avenue between the Beltway and Jones Bridge Road will not be greatly inconvenienced, in that they will experience no greater traffic once the ramp is moved than is now tolerated by residents of the avenue south of Jones Bridge Road. Mr. Noah ignores the fact that a substantial amount of truck traffic will be added to the avenue if the ramp is moved and that such traffic will have a deleterious effect on people both north and south of Jones Bridge Road. He also ignores the findings of the staff of the Maryland National Capital Park and Planning Commission. That group has recommended that several homes on the east side of the avenue in this area be condemned as unlivable if the ramp is moved.

For these and many other good reasons, most of the citizen groups representing residents along Connecticut Avenue, from the Beltway to the District line, oppose moving the ramp.

JOHN J. MATHIAS Council Member, Chevy Chase Valley Citizens Association Chevy Chase