The in basket: I decided to find out recently if the big
pedestal-mounted electronic signs that adorn the shoulders of state
highways in Kitsap County are as little used at they appear to
be.
“I’ve seen them warn of problems at the Narrows Bridge, and the
Hood Canal Bridge, ferry wait times and Amber alerts,” I wrote to a
state official, “but I can’t recall the last time I saw a message
on one about a temporary Kitsap County disruption.”
When I asked a year ago about announcing slippery conditions in
the notorious stretch of Highway 3 near Austin Drive in Bremerton
when temperatures drop below freezing, I was told that such a
notice wasn’t within the parameters for using the signs.
Another time, Tom Clark of Poulsbo suggested they could save
commuters time during the Highway 305 widening project by
announcing which lanes are open. I conceded in my inquiry that
trying to provide accurate information about something as fluid as
lane closures on a highway project probably would create more
misinformation than information.
“Can you disabuse me of the notion that they are almost never
used for Kitsap County road disruptions of just a day or two,” I
asked, “by citing some instances when they were, explain why not if
there are no such instances, and generally describe the philosophy
for their use that underlies those decisions?” The out
basket: Steve Bennett, the traffic engineer for the state’s Olympic
Region, provides the state’s position.
“We try hard to provide motorists with accurate, pertinent and
timely information without needlessly distracting them from the
task of driving or giving out information that is either wrong or
out of date,” he said..
“Our concern is that if motorists are presented with messages
that do not pertain to actual conditions or a specific need, over
time they will tend to ignore these signs altogether. We want
them to recognize that when a message is posted, it is important
and worth paying attention to.
“We have also experienced instances where the changeable message
itself has caused congestion as motorists slowed significantly to
see what was going on. So we believe there is the risk of
doing more harm than good in terms of activating these
signs.
“Weather-related road conditions such as icy roads can
change quickly and sometimes vary from hour to hour, road to road,
and within sections of the same road. We do not have the
ability to monitor road surface conditions in any way approaching
real time or system-wide. So the likelihood
of constantly attaining reasonable accuracy is
low.
Further, “we are concerned that by posting an ice message we may
be implying that we know on any given stretch of
road and hour by hour when a road is icy. The
concern is that this may lead drivers to believe that when no
message is posted there is no ice on the road. This would not
necessarily be the case, and could send a very misleading
message. Using temperature as the indicator really wouldn’t
help because of the many cold dry days where the roads remain
clear of ice.
“All that said,” he concluded, “I think you are correct in
your desire to see more construction and maintenance messages
posted on the signs. These activities are predictable and can
be posted with a high degree of confidence of being
accurate. We will be modifying our approach to better include
these uses”.