City ordinance designates that a stop sign be present here. There are stop signs on Pinnacle and Four Sisters at their intersections with Nowland Farm Road.

http://www.sburl.com/vertical/sites/%7BD1A8A14E-F9A2-40BE-A701-417111F9426B%7D/uploads/South_Burlington_Motor_Vehicle_and_Traffic_Regulation_Ordinance.pdf

Page 24 in the PDF:
"The Police Department shall conspicuously place suitable "STOP" signs in and near the areas affected by the provisions of this section, and action hereunder."
...
"The list of streets designated as "STOP" streets and intersections is contained in Appendix B of this Ordinance."

Page 30 of the PDF (from appendix B):
"Vale Drive at Nowland Farm Road"

I got an error about a moderator needing to approve my comment yesterday and it doesn't seem to have sent a notification afterwards (I suspect a URL in the text triggers this for review before being made pubic). Anyway, here is the comment without the link to the PDF of the vehicle and traffic ordinance.

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City ordinance designates that a stop sign be present here. There are stop signs on Pinnacle and Four Sisters at their intersections with Nowland Farm Road.

Page 24 in the PDF:
"The Police Department shall conspicuously place suitable "STOP" signs in and near the areas affected by the provisions of this section, and action hereunder."
...
"The list of streets designated as "STOP" streets and intersections is contained in Appendix B of this Ordinance."

Page 30 of the PDF (from appendix B):
"Vale Drive at Nowland Farm Road"