.City Council
MEETING DATE: 7/22/2015
TITLE:
Title
Approval of Traffic Signal Repairs and Upgrades Provided by Siemens Industry, Inc.
End
FROM:
Pat Milos, Community Development Director
RECOMMENDATION:
Recommendation
Staff recommends that the City Council approve proposals and invoices from Siemens Industry, Inc. for the installation of wireless communication radios on Date Palm Drive at the intersections of Victoria Drive and Converse Roads; and replacement of deteriorated traffic signal conductor on Date Palm Drive at Gerald Ford Drive; and a change order for replacing damaged conduit at the intersection of Date Palm Drive and 30th Avenue.
Body
BACKGROUND:
Siemens Industry Inc. is contracted by the City to make necessary repairs to maintain the City’s traffic signal system. The installation of wireless communication modems (radios), replacement of conduit, conductor and related appurtenances are part of ongoing city-wide maintenance and/or improvements of the traffic signal system. The items requested are part of the maintenance and upgrades that City Staff and its traffic signal maintenance contractor identify as needing immediate attention in order to maintain intersection traffic safety.
DISCUSSION:
1. Encom 5100R wireless communication radios have been installed on Date Palm Drive at the intersections of Victoria Drive and at Converse Road in order to improve signal interconnection as part of a signal synchronization project. The City was utilizing a copper wire system strung between SCE power poles to operate the traffic signal equipment. The Encom 5100R wireless radios eliminated the need to use SCE infrastructure and, thus saves the City approximately $1,200 in annual pole rental fees. In addition, replacing the copper wire system is not only a cost saving measure, but also allows the City to connect additional intersection wireless communication radio upgrades into the existing infrastructure without any added service interruptions.
2. The traffic signal conductors located at the intersection of Date Palm Drive at Gerald Ford Drive have deteriorated. This intersection has gone into a flash mode on several occasions and can no longer be reset to a normal functional operation. Siemens is proposing to remove the existing deteriorated wires, clean out the conduits, supply and pull new TS conductor cable, EVP, SL and SNS wires and make the necessary connections and inspections to this traffic signal intersection. Once repairs are completed the signal can be taken out of the flash mode and placed into the normal signal cycle mode.
3. On March 25, 2015, City Council approved a traffic signal upgrade contract with Siemens Industry Inc. to install two (2) LED protected left turn arrow signals on existing signal masts and all related appurtenances at the intersection of Date Palm Drive and 30th Avenue. During the traffic signal upgrade excavation, Siemens encountered existing damage to the conduits and conductors. In order to maintain operation of the traffic control system while repairs were underway, Siemens had to temporarily overhead all the conductors.
Siemens determined that the damage to the signal conduit and conductor occurred during an installation of a sewer line in the intersection years prior.
This traffic signal change order is for the work performed by Siemens to reroute all the conductors and repair the damaged conduit at Date Palm Drive at 30th Avenue. Once the extent of the damage was located and isolated, a portion of asphalt was removed to expose and replace the damaged conduit. The conduit and conductors at this location needed to be replaced in order to complete the previously approved traffic signal upgrades, to re-pull conductor and add left turn phases for east and west.
FISCAL IMPACT:
The installation of wireless communication radios on Date Palm Drive at Victoria Drive and at Converse Road is $15,042.94; 2. The proposal to replace deteriorated conductors at the intersection of Date Palm Drive at Gerald Ford is $24,850; and 3. The cost for the change order for the work to replace the damaged conduit and conductors at the intersection of Date Palm Drive and 30th Avenue is $12.393.70. The total for all three traffic signal control repairs is $52,267.70.
The repairs and upgrades to these intersections are funded by Traffic Safety Maintenance and Operations funds 233-6513-8301.
ATTACHMENTS:
1. Siemens Invoice for installation of wireless communication radios on Date Palm Drive at intersections of Victoria Drive and Converse Road.
2. Siemens invoice to replace and supply conductors at Date Palm Drive and Gerald Ford Drive.
3. Siemens Change Order for damaged conduit and conductors at Date Palm Drive and 30th Avenue.