Minnesota’s Scenic Byways and Unofficially Named Highways

October 15, 2016 at 1:30 pm | Posted in Highway Signs | Leave a comment

Here are the Scenic Byways

Apple Blossom Drive

Hiawatha-Appleblossom Scenic Drive Sign


Avenue of Pines


Edge of the Wilderness Scenic Byway


Glacial Ridge Trail

Glacial Ridge Trail Sign


Grand Rounds Scenic Byway

Grand Rounds Scenic Byway Sign


Great River Road National Scenic Byway

Great River Road Minnesota Sign


Gunflint Trail


Historic Bluff Country Scenic Byway


Historic Highway 75 “King of Trails”

King of Trails HIghway Sign


Ladyslipper Scenic Byway (Formerly known as “Scenic Highway Scenic Byway”

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Lake Country Scenic Byway

Lake Country Scenic Byway Sign


Minnesota River Valley Scenic Byway

Minnesota RIver Valley Scenic Byway Sign


North Shore Scenic Drive

North Shore Scenic Drive Sign

Old Design

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Another Old Design


Otter Trail Scenic Byway

Otter Trail Scenic Byway Sign


Paul Bunyan Scenic Byway

Paul Bunyan Scenic Byway Sign


St. Croix Scenic Byway

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Shooting Star Scenic Byway

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Old Design


Skyline Parkway

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Old Design


Superior National Forest Scenic Byway

Superior National Forest Scenic Byway Sign


Veterans Evergreen Memorial Drive

Veteran's Evergreen Memorial Scenic Drive Sign


Waters of the Dancing Sky Scenic Byway

Waters of the Dancing Sky Scenic Byway Sign


Unofficially Named Highways and Other Signs

Bobby Aro Memorial Highway

Bobby Aro Memorial Highway Sign


Bushaway Road. Getting these signs made was an attempt by NIMBYs to keep a dangerous and congested section of County Highway 101 by their houses from being rebuilt to modern standards with protected bicycle infrastructure.

Bushawa Road Sign


Dodd Road was an early road from St. Paul to St. Peter

Dodd Road Sign


The Mississippi Mile is a historic district along the Mississippi River in downtown Minneapolis

Mississippi Mile Sign


Natural Preservation Routes are routes that are allowed deviations from modern safety standards due to being lower volume routes in natural settings

Natural Preservation Route Sign


Voyageurs National Park related areas

other-voyageurs-np


The Wild North is a branding for tourist attractions in the northeast

The Wild North Sign

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Minnesota’s Officially Named Highways

October 15, 2016 at 3:12 am | Posted in Highway Signs | Leave a comment

These are the officially named highways in Minnesota, per Minnesota Statutes 161.14 Names and Designations of Certain Highways. Originally Mn/DOT was required to erect signs to mark these highways, in later years despite the statute they required funds for the erection and maintenance of the signs to come from local sources, and the law was finally amended to codify that. Generally the markers are white text on a green sign unless the highway is also a scenic byway; many of the older ones are unmarked as even the locals can’t remember who the person it was names after was, much less have the initiative to pay for signs.

Capital Highway


Colville Memorial Highway


Floyd B Olson Memorial Highway

Floyd B. Olson Memorial Highway Sign


Theodore Christenson Drive


P.H McGarry Memorial Drive


Veterans Evergreen Memorial Drive (Also a Scenic Byway)

Veteran's Evergreen Memorial Scenic Drive Sign


Yellowstone Trail


Sioux Trail


Arthur V Rowheder Highway


Hiawatha Pioneer Trail A marker you’d never mind in today’s politically correct climate, the Hiawatha Pioneer Trail was a 1960s effort to promote tourism by the American Petroleum institute (yes, really, if you’re driving around you’re buying more of their fine products). It meandered all over Minnesota, Iowa, Illinois, and Wisconsin. Not surprisingly people didn’t want to drive aimlessly over what is primarily boring farm country, and it never really was a success. This sign at US 10 and 61 and an almost illegible one on west 7th were the last ones I’ve spotted in Minnesota; they’ve lasted a bit longer in Iowa.

Hiawath Pioneer Trial Sign


Blue Star Memorial Highway


John A Johnson Memorial Highway


Glacial Ridge Trail (Also a Scenic Byway)

Glacial Ridge Trail Sign


Eisenhower Memorial Bridge


Hiawatha-Appleblossom Scenic Drive

Hiawatha-Appleblossom Scenic Drive Sign


Voyageur Highway

Voyageurs Highway Sign


Viking Trail

Viking Trail Sign

(Bad Picture)


Veterans Memorial Bridge


George Mann Memorial Highway


Olof Hanson Drive

Olof Hanson Drive


American Veterans Memorial Highway

American Veterans Memorial Highway Sign


Moberg Trail


Paul Bunyan Expressway


Disabled American Veterans Highway and Rest Area


BE Grottum Memorial Highway

B.E. Grottum Memorial Highway Sign


Wally Nelson Highway


Laura Ingalls Wilder Historic Highway


Minnesota Veterans Memorial Highway


Bridge of Hope Named in the hope that Jacob Wetterling would be found. Also the first to be specified that local funds needed to be the funding source for the signs

Bridge of Hope Sign


Betty Adkins Bridge


POW / MIA Memorial Highway

POW / MIA Memorial Highway Sign


Veterans Memorial Highway (I)

Veteran's Memorial Highway Sign


Amish Buggy Byway


Czech Heritage Highway

Czech Heritage Highway


Victory Drive


Veterans Memorial Highway (II)


Dale Wayrynen Memorial Highway


Augie Mueller Memorial Highway

Augie Mueller Memorial Highway Sign


Don Rickers Memorial Highway

named-don


Ruby L. Hughes Blvd


State Trooper Timothy J. Bowe Memorial Highway


Otter Tail Veterans Memorial Drive


C. Elmer Anderson Memorial Highway

C Elmer Anderson Memorial Highway


34th Infantry (Red Bull) Division Highway

Red Bull Highway Sign


Richard J. Mathiowetz Memorial Highway


Old St. Anne’s Pass


State Trooper Theodore “Ted” Foss Memorial Highway


King of Trails

King of Trails HIghway Sign


Bradley Waage “Brainerd Brad” Memorial Bridge


Veterans Memorial Bridge


Purple Heart Memorial Highway

Purple Heart Memorial Highway Sign


Biauswah Bridge


POW / MIA Memorial Highway (II)


Shawn Silvera Memorial Highway


Purple Heart Trail

Purple Heart Trail Sign


Dallas Sams Memorial Highway


Walter F. Mondale Drive


Jim Oberstar Causeway


Mayor William “Bill” Sandberg Memorial Bridge


Clearwater County Veterans Memorial Highway


Speaker Irvin M. Anderson Memorial Highway


Corporal Jonathan Benson Memorial Highway


Veterans Memorial Bridge


Veterans Memorial Highway (III)


Becker County Veterans Memorial Highway


Granite City Crossing


Veterans Memorial Highway


Black and Yellow Trail

Black and Yellow Trail Sign


Ariane Celeste Macnamara Memorial Bridge


Deputy John W. Liebenstein Memorial Highway


Officer Tom Decker Memorial Highway


Officer Richard Crittenden, Sr Memorial Highway


Nicholas Patrick Spehar Memorial Highway


Michael Duane Clickner Memorial Bridge


Old Cedar Avenue Bridge


Trooper Glen Skalman Memorial Highway


Sergeant Joseph Bergeron Memorial Highway


Officer Scott Patrick Memorial Highway


Patrol Officer Michael Alan Hogan Memorial Highway


Staff Sergeant Kevin Witte Memorial Highway


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Warrants And Justifications for Highway Signs

October 6, 2016 at 12:34 pm | Posted in Highway Signs | Leave a comment

You can’t just plop a highway sign anywhere you feel like it, there’s specific rules and justifications for installing signs. Here’s what they are:

 Justification for Stop Signs

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Let’s go to the Minnesota MUTCD; section 2B.4:

.03 YIELD or STOP signs should be used at an intersection if one or more of the following conditions exist:

  1. An intersection of a less important road with a main road where application of the normal right-of-way rule would not be expected to provide reasonable compliance with the law;
  2. A street entering a designated through highway or street; and/or
  3. An unsignalized intersection in a signalized area.

.04 In addition, the use of YIELD or STOP signs should be considered at the intersection of two minor streets or local roads where the intersection has more than three approaches and where one or more of the following conditions exist:

  1. The combined vehicular, bicycle, and pedestrian volume entering the intersection from all approaches averages more than 2,000 units per day;
  2. The ability to see conflicting traffic on an approach is not sufficient to allow a road user to stop or yield in compliance with the normal right-of-way rule if such stopping or yielding is necessary; and/or
  3. Crash records indicate that five or more crashes that involve the failure to yield the right-of-way at the intersection under the normal right-of-way rule have been reported within a 3-year period, or that three or more such crashes have been reported within a 2-year period.

.05 YIELD or STOP signs should not be used for speed control.

The typical location is a minor street approach to a major arterial, like all the minor side streets at Lyndale Ave. I doubt many or most of the Minneapolis “basket-weave” stop signs meet MUTCD recommendations, and the discouragement of stop signs for speed control is pretty clear. It breeds disrespect for all traffic signs and is counterproductive and even dangerous as motorists can tell when their time is being wasted and impatiently stomp on the gas between signs, then start doing “rolling stops”, then finally just blow through them (including the final sign which is actually entering a street busy with cars and pedestrians). Meanwhile, pedestrians are lulled into a false sense of security.  In over 70 technical papers, it’s been shown that “speed control” stop signs increase safety or decrease speeds only in the very limited situation of on-street parking causing a sight distance problem.

Engineers aren’t necessarily always against speed control in appropriate places, say, to discourage regional traffic from cutting through on local streets to avoid congestion on an arterial. This is a particular problems in older neighborhoods where the lack of a hierarchical road network and capacity problems at intersections enable and  encourage motorists to cut through on local streets.  But using geometrics like chokers and traffic circles or signal timing to accomplish it is a lot safer and more effective.

Justification for 4-Way Stop Signs

Once again lets see what the MUTCD has to say; Minnesota MUTCD 2B.7:

.01 Multi-way stop control can be useful as a safety measure at intersections if certain traffic conditions exist. Safety concerns associated with multi-way stops include pedestrians, bicyclists, and all road users expecting other road users to stop. Multi-way stop control is used where the volume of traffic on the intersecting roads is approximately equal.

.02 The restrictions on the use of STOP signs described in Section 2B.4 also apply to multi-way stop applications.

.03 The decision to install multi-way stop control should be based on an engineering study.

.04 The following criteria should be considered in the engineering study for a multi-way STOP sign installation:

A. Five or more reported crashes in a 12-month period that are susceptible to correction by a multi-way stop installation. Such crashes include right-turn and left-turn collisions as well as right-angle collisions.

B. Minimum volumes

1. The vehicular volume entering the intersection from the major street approaches (total of both approaches) averages at least 300 vehicles per hour for any 8 hours of an average day; and

2. The combined vehicular, pedestrian, and bicycle volume entering the intersection from the minor street approaches (total of both approaches) averages at least 200 units per hour for the same 8 hours, with an average delay to minor-street vehicular traffic of at least 30 seconds per vehicle during the highest hour; but

3. If the 85th-percentile approach speed of the major-street traffic exceeds 40 mph, the minimum vehicular volume warrants are 70 percent of the values provided in Items 1 and 2.

Perhaps a 4-way stop would be appropriate at 46th and Bloomington, but having them on Lyndale Ave and a minor street, say at 25th St where there’s been calls for a traffic signal, or where unwarranted signals should be removed clearly violates MUTCD recommendations and would preclude any attempt at platooning.

Justification for Warning Signs

In engineer speak, here is the justification for warning signs; Minnesota MUTCD 2C.1:

Warning signs call attention to unexpected conditions on or adjacent to a highway, street, or private roads open to public travel and to situations that might not be readily apparent to road users. Warning signs alert road users to conditions that might call for a reduction of speed or an action in the interest of safety and efficient traffic operations….The use of warning signs should be kept to a minimum as the unnecessary use of warning signs tends to breed disrespect for all signs.

Warning signs are effective when used to warn drivers of discrete, static, unexpected conditions, and preferably inform them of what action to take. Examples of effective warning signs are curve ahead signs, mid-block crosswalks, and uneven lanes. Here’s one from Nova Scotia, where they want you to get the idea that the expressway ends and if you don’t stop and turn you’ll have a close encounter with a balsam fir tree.

Nova Scotia Expressway Ends Sign

Nova Scotia Expressway Ends Sign

Here’s another good installation of warning signs, this time a little closer to home near Worthington. Local county roads were used as a detour during completion of the MN 60 Expressway, and the road takes a sharp turn that is likely unexpected in flat farm country and difficult to see due to being on top of a small hill. The signs warn of an unusual, static, always present hazard and are clear what action to take (slow down to 40 mph and be prepared for the turn).

sign-warrants-03

Near Worthington, MN

Warning signs are not effective when warning of ordinary conditions that may or may not be present and are unclear about what action to take. An example would be Slow-Children at Play signs.

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Slow Children Sign

Besides contributing to motorist disrespect for all signs, they endorse  the idea of children playing in the middle of the street, lull children and parents into a false sense of security, and give the impression that if the signs aren’t there, then it’s OK to drive fast and it’s not necessary to watch for children. And how slow is “slow” specifically? The speed limit? 25 mph? 10 mph slower than whatever you’re doing? When is it OK to speed up again?

Similarly, those “Deer” signs on rural roads are ineffective and are now being removed. Here’s a sign from New Brunswick. It’s dramatic, but is it effective?

New Brunswick Moose Warning SIgn

New Brunswick Warning Sign

Signs to actively warn motorists if deer are present have been tested by Mn/DOT as far back as 2001, and were found to be effective, reducing car vs deer crashes by a third to a half,  but the technology was just too expensive and cumbersome. Attempts to tweak it are continuing.

Inappropriate stop and warning signs (and signals) are of course extremely common; nothing gives the perception of safety like a nice shiny sign.  A study in Stearns Countyshowed one-third of the highway signs int he county were not needed, and maintaining unneeded signs is not a trivial expense.  Some agencies have practiced a don’t ask / don’t tell policy on speed control stop signs, removing them when they’re called on it. Sometimes politicians like to play “traffic engineer” and order a sign installed with absolutely no engineering justification. Often an audit finds signs for which there are no records of who, when, and why it was installed, or not uncommonly signs that residents have bought andillegally installed themselves! Here’s an illegal sign in my neighborhood.

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Illegal Sign

Although it’s unlikely the city has the wherewithal to find the responsible party and  prosecute a crime like this, if, say, an illegal sign alters the intended right-of-way in an intersection or a child thinks it’s safe to play in the street and a crash occurs, a lawyer is a lot more likely to find out who put up the sign.

Crosswalk Warning Devices

If it’s desired to have something more than an uncontrolled crosswalk but less than a full-fledged signal (or a signal is not warranted) there are options. One is a Rectangular Rapid Flashing Beacon (RRFB).

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Rectangular Rapid-Flashing Beacon

These use a standard pedestrian sign with yellow strobe lights to warn motorists that pedestrians are present.

Here are LEDs embedded in the road in Wisconsin Dells

Another is a High-intensity Activated crossWalK beacon, better known by the catchy but contrived acronym “HAWK”.

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HAWK

These are substantially cheaper than conventional traffic signals (about $80,000), and have close to 100% compliance from motorists (as opposed to 25–45% on crosswalks even when equipped with a flashing yellow beacon). Unlike most of the other devices we’ve been talking about, there are specific warrants for these. The warrants are for any 1 hour of a day.

sign-warrants-09

sign-warrants-10

These tend to work best on isolated, wide, suburban-style roads where there’s no attempt at a green wave and platooning and there are a lot of pedestrians crossing, like near a park or school. I’ve seen several of these on the Wisconsin Dells strip where people who don’t want to pay to park in the waterpark parking lots are walking from their motels.

Another thing worth noting: the city of Minneapolis, with permission from the American Association of Highway and Transportation Officials (AASHTO), the agency that develops the MUTCD, has been experimenting with flashing red lights on an overhead sign, in order to see if they have the benefits of a HAWK at an even lower price. The thinking is that flashing red lights send a stronger message, since the legal meaning of a flashing yellow light is “Caution” or “Look at this Sign”, whereas flashing red means “Stop”.

sign-warrants-11

New Crosswalk under test

These omit the pedestrian signal present on regular traffic signals and HAWKs, and with the visors you can’t really see what indication motorists have. I found it disconcerting as a pedestrian not knowing if they had switched to flashing red yet or if they were even working. Since ADA compliant push-buttons will eventually be installed at all signalized intersections, I wonder if they could also be used here with a feedback message like “31st Street has red lights”.

Since the cost of a fatal crash is high ($10.6 million dollars) and all these various blinking light devices are fairly cheap in capital costs (an RRFB is about $15,000) and don’t create much in congestion costs,  the question might be why don’t we use more of them? I see more and more going up, which is good. These are going up in Bloomington, including one crossing on Lyndale Ave near the VEAP social services building, and another where students cross from the Holiday gasoline station to Kennedy High School in the middle of the block rather than walking 200 feet to a signalized intersection.

But there is such a thing as too much of a good thing, so we need to be careful and use these warning systems with discrimination. Take the center-mounted brake lights on cars: when they were introduced rear-end crashes immediately went down 35%. But now that every car has them, they’re becoming part of the background noise of the road; effectiveness is now at 4.3% as drivers have tuned them out. Use too many signs, too many lights, and when everything screams at motorists from every direction, it all just gets tuned out as noise.

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