Pilot project to
ease Route 1 congestion
Windsor begins this week
Left and U-turn
Washington Road and
The New Jersey Department of Transportation
today announced that a trial program
to ease congestion on Route 1 by restricting
left turns and U-turns on Route 1 at
Washington Road and Harrison Street
in West Windsor, Mercer County, will
be implemented Friday, August 3, with
all restrictions expected to be in place
on Saturday, August 4.
NJDOT is seeking to reduce congestion
along the Route 1 northbound corridor
in the vicinity of Washington Road
and Harrison Street where the rightmost
of three lanes becomes crowded with
motorists queuing to make left turns,
particularly during peak travel periods.
Temporary construction barrels will
be used to implement the restrictions
over the course of a planned 12-week
NJDOT has collected traffic volume
and trip-time data at numerous locations
in Princeton Township, Princeton Borough,
West Windsor and Plainsboro prior
to the trial and will continue to
do so during the trial to evaluate
the impacts of the restrictions.
After the conclusion of the trial,
NJDOT will meet with stakeholders
to present its findings as to whether
the restrictions have proven to be
effective in reducing Route 1 congestion
and to discuss the extent of any secondary
impacts on local streets and roads.
If the trial is deemed a success,
the turns will not be restored and
the Department will replace the temporary
barriers with permanent more aesthetically
pleasing barriers as expeditiously
If the trial is unsuccessful, the
temporary restrictions will be removed
to restore all existing traffic movements.
Numerous existing traffic movements
at the Washington Road and Harrison
Street intersections with Route 1
will remain available to motorists.
- Motorists heading east from
Princeton on Washington Road
(CR 571) will continue to be able
to make all current movements at
the Route 1 intersection. They may
turn right onto Route 1 south, proceed
straight through the intersection
to continue on Washington Road,
or turn left onto Route 1 north.
- Motorists heading west from West
Windsor on Washington Road
also will continue to have all
three movements (left, straight
or right) available at the Route
- Motorists heading
east from Princeton on Harrison
Street also will have all three
existing movements (left onto
Route 1 south, straight into
the Sarnoff facility or left onto
Route 1 north) available.
departing the Sarnoff facility
onto Route 1 at Harrison Street
will be restricted to right turns
only onto Route 1 northbound.
Route 1 northbound
and southbound motorists will be prevented
from making left turns and U-turns
at the Washington Road signalized
intersection. While a number of options
exist for motorists, only the preferred
alternative will be posted.
- Route 1 northbound motorists
seeking to make a left onto
Washington Road toward Princeton
will be directed to continue north
on Route 1 and make a U-turn at
the Scudders Mill interchange, proceed
south on Route 1 and make a right
turn onto Washington Road. The U-turn
movement at the Scudders Mill interchange
is the second exit off of Route
- Route 1 northbound
motorists seeking to make a
U-turn can make that move at
the Alexander Road or the Scudders
Mill Road interchanges.
- Route 1
southbound motorists seeking
to turn left onto Washington
Road will be directed to proceed
approximately 0.1 miles past Washington
Road, take the ramp to Alexander
Road eastbound and then proceed
to Route 1 northbound from which
they may turn right onto Washington
road toward West Windsor.
1 southbound motorists seeking
to make a U-turn may make that move
at Fischer Place or Alexander
Route 1 northbound
motorists will be prevented from making
left or U-turns at the Harrison Street
- Motorists will be directed
to proceed north on Route 1 to
the Scudders Mill Road interchange
and take the U-turn ramp, which
is the second ramp at the interchange
as motorists head north on Route
1, to Route 1 southbound. They may
turn right at at Harrison Street or
continue south on Route 1.
In connection with the trial, turn
restrictions will be implemented at
Varsity Avenue and Fisher Place.
The traffic signal at Harrison Street
will be optimized with a goal to improve
traffic flow for Route 1 motorists.
NJDOT held public meetings in both
communities to discuss the pilot program
in January, and has kept an open line
of communication in the months leading
up to the implementation of the program.
The pilot-program had initially been
planned to begin in March of this
year, but NJDOT deferred
the start to accommodate the spring opening
of the new University Medical Center
of Princeton at Plainsboro on Route
1 just north of Harrison Street.
NJDOT has deployed Dynamic Message
Signs on Route 1, I-95 and I-295,
as well as static signage on Route
1 notifying motorists of the restrictions
and alternate routes.
The Department also developed a project-specific
website where residents and motorists
can get further information.