Timing Plan Fine-Tuning and Adjustment. When the new timing is operational, the Engineer will provide qualified staff members for on-site fine-tuning assistance. The first step in this process will be for the Client to furnish the Engineer with a print-out (or PDF) of the actual timing database as uploaded from the controllers. The Engineer will then check this information. The Engineer will then observe the actual on-street operation of the new timing plans and suggest adjustments to improve the operation. It is assumed that Client’s staff may desire to participate in this process, thereby gaining familiarity with the timing plans and the on- street adjustment process. On a per-intersection basis, the appropriate number of hours of fine-tuning per timing plan depends on the size of the corridor. For this project, it is assumed for budgetary purposes that the Engineer will provide up to 250 person-hours of fine-tuning assistance. After the Engineer has fine-tuned the timing plans, it is also assumed that the Client will provide to the Engineer a paper (or PDF) copy of the final timing database. This information will then be used by the Engineer to verify that the final Synchro™ correctly reflect the as fine-tuned conditions.
Timing Plan Fine-Tuning and Adjustment. When the new timing is operational, the Consultant will provide qualified staff members for on- site fine-tuning assistance. The first step in this process will be for the Client to furnish the Consultant with a print-out (or PDF) of the actual timing database as uploaded from the controllers. The Consultant will observe the actual on-street operation of the new timing plans and suggest adjustments to improve the operation. It is assumed that Client’s staff may desire to participate in this process, thereby gaining familiarity with the timing plans and the on-street adjustment process. On a per-intersection basis, the appropriate number of hours of fine-tuning per timing plan depends on the size of the corridor. For very small corridors, the appropriate number of hours the CK Group, Inc./ City of Arlington TX Signal Retiming Project (per intersection per timing plan) may be as high a 3.0. For large corridors, however, the appropriate number of hours (per intersection per timing plan) may be as low as 0.5. Based on this assumption and assuming 89 signalized intersections in our study area CK anticipated it may spend up to 180 person-hours assisting the City with fine tuning the signals in our study area. On completion of the fine tuning exercise, the Client will furnish the Consultant a PDF copy of the final timing database. This information will be used to update the post retiming Synchro model to properly reflect timing changes made in the field during fine tuning of the recommended timing plans.
