TEAM Conference, St. Louis, MO March 13-15th

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10 Νοε 2013 (πριν από 3 χρόνια και 9 μήνες)

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TEAM Conference, St. Louis, MO March 13
th
-
15th


…In Rural Areas?


Engineering vs. Non
-
engineering options


Help offset a solely data
-
driven process


Provide all potential solutions regardless of cost



Where does this lead?


Establish a process that can be replicated


Potential inclusion in the Planning Framework


Site proposal requests


Solicited from local jurisdictions (cities, counties,
etc.) by letter


Site consideration by the TAC


Data (crash data, traffic volume, congestion
issues, etc.)


Local information (connectivity, near
-
miss
accidents, etc.)


Vote determines location


Identify participants


Local representatives


Non
-
local representatives


DOT representative


Plan for meeting


Safety and transportation


Meeting space and food


Data collection and presentation


Weather



Step 1


Prepare your participants


Review data


Maps, crash data, traffic volume, vehicle types,
congestion, and local knowledge


Tips for site visit observation


Site specific issues vs. surrounding area issues


Checklists available from FHWA


Step 2


Site Visit


Transportation and safety at site


Observation of site (1 day vs. 2 day; night vs. day)


Considerations


Site specific vs. surrounding area issues


Different vehicle types and their potential impact


Impact of weather


Reference points and sight distance


Driver perception of site





Step 3


Identification of issues


Discussion of observation results


Roundtable discussion of observations


Identify common themes (painting, striping, and
signage; sight obstructions or depth perception;
pedestrian impacts, etc.)


Create a summary chart during discussion


Type of issue


Difficulty to implement (high, medium, low)


Cost to implement (high, medium, low)

Site
-
Specific Issue

Potential Improvement Strategy

Difficulty to
Implement

Estimated Safety
Benefit

Sight distance issue with
southbound traffic on Mitchell due
to Industrial park sign

Consider relocating or eliminating the sign

Medium

Low

Grass/foliage obstructs sight
distance looking east from Mitchell

Additional mowing

Low

Low

Forested area northeast of
intersection may be sight distance
concern

Eliminate forested area

Low

Low

Sight distance concern with
westbound 36 curve before Mitchell

Realign highway

High

Medium

Median barrier to close to
intersection and compromises sight
distance

Eliminate barrier and replace with safety cable

Medium

High

Cluttered, non
-
essential signage on
Westbound 36 reduces
visibility/impact of essential signs

Eliminate or relocate MoDOT facility sign, animal
shelter sign, 36 business and 36 junction signs, and
blue motorist service sign

Low

Low

Sign visibility

Increase size of essential signs and add delineators to
posts.

Low

Medium

Nighttime Visibility

Ensure retro
-
reflectivity of striping and essential signs

Low

Low

Faded yield
bars


Paint yield bars

Low

High

Queue area on Mitchell in median
confusing

Paint double yellow stripes to guide traffic, identify
lanes; consider adding rumble strips

Low

High

Vehicles off
-
track into the median
when turning onto/from Mitchell

Add rumble strips on left and right edges of turning
lanes and onto the shoulder

Low

High

Faded striping on every curve

Repaint curves

Low

Medium

Missing pavement marking arrows
inside intersection



Paint arrow markings

Low

High

Missing Stop Bars on Mitchell

Paint Stop Bars

Low

High

Missing turning lane arrows on 36

Paint turning lane arrows

Low

High

Not enough radius for trucks to turn
from 36 to Mitchell

Consider extending turn and acceleration lanes

High

High

Not enough radius for trucks to turn
from 36 to Mitchell

Relocate signs away from corners that obstruct
turning trucks

Low

Medium

Pavement deterioration at median
inside intersection

Make pavement repairs

Medium

Low

Large number of accidents occurring
due to eastbound traffic turning
north onto Mitchell colliding with
traffic traveling westbound on 36

Reconfigure intersection to Type 3, Type 4, or right
in
-
right out turns only

Medium

High

A significant number of crashes
involving trucks turning onto/from
Mitchell from 36

Reroute traffic to 65 interchange through
signage/policy

Medium

High

Missing intersection warning signs

From both directions, add intersection ahead signs
with light (prior to rail bridge); consider adding road
name to sign

Low

High

Lack of lighting contributes to the
ambiguity of the intersection

Increase lighting

Medium

High


Background information


Team, Process, Study Area Characteristics


Assessment Findings and Solutions


Create summary points based on summary chart
from roundtable discussion


Include proposed solutions


Conclusion


Includes proposed solutions, cost and difficulty of
implementation, etc.


Can include responsible party




Break up into groups of 5.


Based on the information provided,
identify potential issues with this
intersection / interchange.


Remember to think outside the box. Consider
driver perception, cyclists, foliage, sight
distance, etc.


Once you have identified potential issues,
start to identify solutions to those issues.


Anything goes!


Site Background


Town background


Crash data


AADT


7990
-

Business 71


7305
-

Hwy 71


Site information


Factory access and
shift work


Group discussion


What issues did your team identify?


Engineering vs. Non
-
engineering


What type of solutions did your team identify?


Engineering vs. Non
-
engineering?


How might a site visit change your perception of
the intersection?


Contact Information:

Dana Ternus, Regional Planner

Northwest Missouri Regional Council of Governments

dana@nwmorcog.org

660
-
582
-
5121 (office)

660
-
853
-
8477 (mobile)