Attendance:
LOGAN CANYON
Minutes of ID Team Meeting
July 28, 1986
Clark Ostergaard - USFS
Fred LaBar - USFS
Todd Weston - UDOT
Stan Nuffer - CH2M HILL
John D'Amico - CH2M HILL
Cliff Forsgren - CH2M HILL
Bill Helm - Unattached
Rudy Lukez - Sierra Club
Howard Richardson - UDOT
John Neil - UDOT
ITEM 1 - REVIEW OF MINUTES
The minutes were reviewed. There was some confusion about
the sources of additional names for the mailing list which
were listed in the minutes. It was noted that Fred LaBar
and Bill Helm had mailed names and not turned them in at the
last meeting. There was no other discussion on the minutes.
ITEM 2 - TRAFFIC COUNT DATA
The sources of traffic data were discussed. Permanent
stations on US 89-91 at Webster Junction, on US 89 at Card
Guard Station in Logan Canyon (later moved to Garden City),
and on US 89 north of Garden City are being used in the
preparation of the traffic forecast.
ITEM 3 - PRESENTATION OF PROPOSED TRAFFIC FORECAST
A past trends based forecast had been prepared using a least
squares best fit linear function. This approach produced an
annual increase in ADT which was less than one percent, a
rate which was felt to be low. The Utah State, Office of
Planning and Budget was prepared its forecast of economic
and population growth through the year 2010. The overall
rate of population increase for northern Utah was approximately
2 percent. If traffic in Logan Canyon were to increase
at the same rate as the population, the summer ADT in
Logan Canyon would reach approximately 6,000 vehicles per
day in 2,010. Supporting data for this forecast is available
and will be presented at the next ID Team (Team) meeting.
There was also some discussion on the traffic classification
counts. The summer counts will begin on July 29, 1987. The
counts will include a classification for recreational vehicles
and record turning movements.
ITEM 4 - DISCUSSION OF HIGHWAY CAPACITY AND LEVEL OF SERVICE
DETERMINATION
The roadway will be evaluated on the basis of the level of
service which is possible at a given traffic volume. The
Transportation Research Board describes a procedure for establishing
levels of service (A through E) for rural roads.
Copies of portions of the procedure description were distributed
to team members to help them become familiar with
the level of service concept. There was some discussion on
which level of service would be planned for in the Canyon.
UDOT would like to plan for a "C" level, but the actual level
of service used will be determined by the Team.
ITEM 5 - REVIEW OF ACCIDENT DATA
The accident data for 6 years (1980 - 1985) has been
tabulated using a UDOT computer program. The UDOT program
was used because the program performs the types of analysis
required for roadways and the accident data base was already
on the UDOT computer. The computer runs had only recently
been completed and there had not been sufficient time to
review the results. Hopefully this will be completed by the
next meeting.
ITEM 6 - UPDATE ON STATUS OF BASE MAP PREPARATION
An example of the base maps was shown to the Team. Copies
of the set will be available, when they have been completed,
to Team members who wish to have one. Clark Ostergaard
requested a set to get started on the visual survey.
MISCELLANEOUS
The approved forest plan has a section on Logan Canyon which
may be of interest to Team members. Clark Ostergaard will
bring a number of copies of that section to the next meeting.
SLC8I/II
Highway 89
