2010 Construction and Material Specifications - Ohio Department of ...

633.17
B. Systems Engineer or Technician. Employ a systems engineer or technician
to perform the work required by this subsection and submit to the Engineer for
approval three copies of a resume documenting the following qualifications:
1. A minimum of 5 years experience in traffic engineering or traffic
engineering technology.
2. The systems engineer or technician’s education including training in
traffic engineering technology and signal system design.
3. The systems engineer or technician’s familiarity with the closed loop
system installed and experience in setting up and fine tuning a system of that type.
Furnish a list of other closed loop systems that the systems engineer or technician
has programmed into the traffic responsive mode for documentation purposes.
Also, submit to the Engineer for approval a brief description of
proposed methodology of data collection and analysis of:
a. System parameter usage in system evaluation.
b. Frequency and measurement of travel time and delay.
c. Comparison of actual versus system measurements of delays
(level of service).
The systems engineer or technician, under authority of the Contractor, is
responsible for the operation of the system from the completion of the signal
system acceptance until completion and acceptance of the final summary report by
the Engineer. The systems engineer or technician shall provide a 24-hour
emergency phone number and shall respond to system related problems as deemed
necessary by the Engineer 24 hours a day, 7 days a week. If there is a guarantee
period, the Engineer reserves the right to request a systems analysis throughout the
entire duration of this period, if new or continuing problems occur with the
operation of the traffic responsive system.
The Engineer reserves the right to request that the Contractor furnish a new
systems engineer or technician if the current systems engineer or technician fails to
perform the required duties in a timely and professional manner or fails to have a
firm understanding of the operation and programming of the closed loop system
constructed.
C. Traffic Programs. The systems engineer or technician shall develop signal
progression and timing programs from count and occupancy data obtained from
the local intersection and system loop detectors, supplemented by field counts and
measurements as required. The systems engineer or technician shall develop the
following signal progression programs and parameters:
1. Three inbound preferential (a.m. peak).
2. Three outbound preferential (p.m. peak).
3. Three average (off peak). The three average programs should utilize
varying cycle lengths based on traffic volume, density, and occupancy to minimize
overall intersection approach delay time.
4. Two special programs for either high congestion or queue backup.
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