MARY A. HALE, P.E. Kimley-Horn and Associates, Inc. VICTOR DE LA GARZA, P.E. Texas Department of...
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Transcript of MARY A. HALE, P.E. Kimley-Horn and Associates, Inc. VICTOR DE LA GARZA, P.E. Texas Department of...
1MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
The TXDOT El Paso
A CASE STUDYHighway Advisory Radio System
2MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
The Highway Advisory Radio (HAR) System project for the Texas Department of Transportation El Paso District is described from a process point-of-view and includes activities from project conception to commissioning.
Introduction
3MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
Project Conception The TXDOT El Paso District needed
a way to provide the major travel corridors within the district with more travel advisory information than could be conveyed with the dynamic message signs.
4MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
Overall Objective
With the large geographic area that needed coverage, a Highway Advisory Radio System was the proposed solution. 68 MILES OF FREEWAY AND LIMITED
ACCESS FACILITIES US 54 – MEXICO BORDER TO THE
NEW MEXICO BORDER INTERSTATE 10 – NEW MEXICO
BORDER TO FM 1110 US 62/180 AT LOOP 375
5MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
Preliminary Feasibility Study
Before making a huge investment, the proposed solution was scrutinized. A communications assessment was performed to determine the feasibility of obtaining an available AM radio frequency for HAR licensing. FCC FREQUENCY LICENSE
SEARCH – STATION AVAILABILITY FREQUENCY SCANS –
INTERFERENCE ASSESSED PRELIMINARY BUDGET
CONSIDERATIONS
6MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
Vendor Research
Vendor research for production options and operational requirements BUDGETARY CONSIDERATIONS WERE
ADDRESSED AS THE SYSTEM REQUIREMENTS WERE REFINED
GPS SYNCHRONIZATION – NO AUDIO ECHO
CHEMICAL GROUNDING SYSTEM - REDUCED REAL ESTATE
7MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
Design System
Site Selection Considerations ANTENNA MAXIMUM HEIGHT 49.2 FT
(15 M) OBSTRUCTIONS, TALL BUILDINGS CLEAR OF TREES AND SCRUBS RELATIVE ELEVATIONS
8MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
Design System
Site Selection Considerations(Continued) MOUNTAINOUS TERRAIN OR
FLATLANDS >100 FT FROM OVERHEAD
POWER LINES UNDERGROUND UTILITIES COMMERCIAL INTERFERENCE OTHER RADIO TRANSMITTERS IN
PROXIMITY
9MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
Design System
Site Selection Considerations (Continued) FREE OF SAND, ROCK, MUD, CORAL,
AND TREE ROOTS SOIL RESISTANCE RADIAL GROUND - 200 FOOT
DIAMETER CHEMICAL GROUND - 10 FOOT
DIAMETER
10MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
Design System
Site Selection Considerations (Continued) POWER AVAILABILITY –
AC OR SOLAR AVAILABLE COMMUNICATIONS -
WIRELESS, FIBER, PHONE, DIGITAL CELL
PROXIMITY TO AIRPORT – FAA & FCC ISSUES
MUTCD FOR SIGN SPACING
11MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
HighlightedFeatures
Define functional features CENTRALIZED COMMAND –
INTUITIVE GUI GPS SYNCHRONIZED SYSTEM –
NO AUDIO ECHO ALL TRANSMITTING THE SAME
MESSAGE EACH TRANSMITTING INDIVIDUAL
MESSAGES GROUPS WITH VARYING MESSAGES
12MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
HighlightedFeatures
Define functional features(Continued) VOICE RECORDING – EASY ACCESS TEXT-TO-SPEECH – AUTOMATED,
DIGITIZED LANGUAGE(S) - ENGLISH / SPANISH -
TARGET AUDIENCE VOICE GENDER TYPES –
MALE / FEMALE
13MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
HighlightedFeatures
Initial 13 transmitters to 16 at full build-out
Signs with flashing beacons at 16 locations
Chemical grounding system – reduces real estate
14MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
HighlightedFeatures
Solar powered - economical HAR system hardware and software
at the Transvista control center
15MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
HighlightedFeatures
Hybrid communications to control center WIRELESS ETHERNET
INTERCONNECT OF THE HAR ANTENNAS AT 11 LOCATIONS
FIBER OPTIC ETHERNET INTERCONNECT OF THE HAR ANTENNAS AND NETWORK HUBS AT 16 LOCATIONS
REDUNDANT FIBER RINGS – ROBUST COMMUNICATIONS
FLASHING BEACONS VIA PAGERS
16MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
Developing Construction Documents
Plans Specifications Opinions of
probable cost
17MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
Construction Construction support Submittal reviews
18MARY A. HALE, P.E.Kimley-Horn and Associates, Inc.
VICTOR DE LA GARZA, P.E.Texas Department of Transportation
Commissioning the Completed System
System acceptance testing – verify proper installation and configuration
Staff operations and maintenance training