The Needs Assessment (NA) and Traffic, Safety and Needs Identification Analysis (TSNIA) were an extensive research effort based
upon public input, future land use analysis and projected traffic
Three primary reasons to investigate improvement options on the US
51 Stoughton Rd. corridor have been identified.
Some of the following document(s) are in Adobe PDF
(Note: Some files are large and may take
longer to download depending on individual connection speeds. Users
may need to zoom in to see details.)
Improving safety along the corridor is the primary concern of the
study. At most intersections crash problems exist today or are expected to
emerge as traffic volumes increase if no changes are made to the
Along the corridor 2005-2008, based on info. gathered for the
TSNIA, there were:
1,158 crashes (over five/week)
441 injury crashes (over two/week)
Segment crashes rates were higher than the statewide
Under existing conditions crashes are expected to increase
as traffic volumes increase
Nearly 75 percent of the crashes along the
corridor are intersection related. View crash chart data below
for each segment:
Once on the fringe of Madison, Stoughton
Rd. is now
surrounded by commercial and residential areas, with more employment and
residential growth planned for the area in years ahead.
Madison Area Metropolitan Planning Organization (MPO) projects employment in the corridor to
increase by 117 percent and population to increase by 92 percent
between 2000 and 2030.
Existing congestion is causing Stoughton Rd. traffic to
be increasingly diverted to local roads in
adjacent neighborhood communities.
Increase in traffic volumes will deteriorate level of
service (LOS) for motorists at several signalized
intersections along the corridor.
Level of Service (LOS) - A quantitative measure of the
overall traffic flow at an intersection. Those measurements range from LOS A
(traffic is flowing good) to LOS
F (traffic is extremely restricted and many times experiencing
gridlock). LOS D/E is considered the lowest acceptable rating for an
The chart below illustrates the anticipated
congestion levels in the p.m. peak-hour today and in 2030
under the various alternative scenarios as developed from
the TSNIA. View Alternatives A, B and C.
Note - The info. above was developed as part of the TSNIA.
Capacity expansion was not investigated as part of the TSNIA but
is to be examined in this EIS. The Travel times tables above
will be updated once the capacity expansion info. is obtained.
Potential bicycle/pedestrian overpasses at Tompkins
Dr., Helgeson Dr., Walsh Rd./Parkwood Dr. (over WIS 30),
Larson Court, East Washington Ave., and Anderson Rd. (over
I-39/90/94) will greatly enhance safety for crossings in the
The study team met with Madison Metro, city of Madison
Planning, and the Metropolitan Planning Organization to determine
additional supplements to that system. It has been determined that
adding more park and ride lots and expanding existing lots would
enhance corridor operations. Further study will be completed as
details of the alternatives are finalized.
You will need the Adobe Reader (provided free of charge) to view PDF files. For more information
about getting your free copy of the Adobe Reader, visit WisDOT's Software information page.