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TRAFFIC PROJECTS

 

TxDOT HOUSTON DISTRICT

FM 1488 Widening (Mill Creek to SH 149) – This project included 1.553 miles of reconstruction of a 4-lane rural highway including a 1600LF long overpass structure over BNSF railroad & FM 149, connector & access roads, 1650 LF of FM 149 widening, detention ponds, etc. This project also included 3 signal warrant studies and 3 signal layouts which encompassed video detection and interconnect with fiber optic cable, signing and pavement markings and traffic control plans. AIA’s roll was as Task Manager, and was also responsible for handling all traffic data collection.

FM 1488 Widening (Egypt Community Rd. to I-45) – This project included widening of a 7-mile roadway from a 2-lane rural to a 4-lane urban/rural with CLTL in Montgomery County. The project involved schematic refinement, drainage impact, drainage design, traffic control, utility relocations, and signal design; as well as 8 signal warrant studies, 8 signal layouts which encompassed video detection and interconnect with fiber optic cable, signing and pavement markings, and traffic control plans. AIA’s roll was as Task Manager, and was also responsible for handling all traffic data collection.

TC Jester at FM 2920, Houston, Texas – Signing and Pavement Markings and Traffic signal design of TC Jester at FM 2920. Signing and Pavement Markings included a designated left-turn lane on FM 2920 at TC Jester. Signal design included the installation of a video detection system consisting of VIVDS cameras placed at appropriate locations within the intersection. Intersection design involved elevations, quantities, notes, and the necessary TxDOT standards. Design was prepared in compliance with TxDOT standards for signal design.

FM 1464 at West Airport Boulevard – AIA completed the traffic signal design which included the installation of a video detection system consisting of VIVDS cameras placed at appropriate locations within the intersection. Intersection design included elevations, quantities, notes, and the necessary TxDOT standards.

FM 2234 Widening, Brazoria County – AIA prepared four traffic signal layouts, with signal design that included the installation of a video detection system consisting of VIVDS cameras placed at appropriate locations within the intersection. Intersection design also included elevations, quantities, notes, and the necessary TxDOT standards.

FM 1314 Schematic from Loop 494 to SH 105, Conroe – AIA completed the intersection analysis for seven signalized and six unsignalized intersections along the FM 1314 corridor from SH 105 to approximately 600’ west of Sorters Road in Montgomery County. The overall length of the proposed project is approximately 17.88 miles with an approximate width of 160 feet. Based on manual turning movement counts from TxDOT, AIA converted the provided volumes to Daily Hourly Volumes (DHV) and determined the existing LOS for each intersection. The future traffic projections were based on growth factors from the Houston-Galveston Area Council. The LOS was also determined for 2020 and intersection improvements were recommended based on these LOS findings.

SH 35 Major Corridor Feasibility Study – Traffic Analysis was performed to evaluate the future operating conditions for each of the alternatives. The arterial alternatives included a No Build and TDM/TSM Improvements. The freeway facility alternatives included alignments along Mykawa Road, MLK Blvd., and a diagonal route from SH 288 to SH 35 – Alvin Bypass. Freeway, Tollway and HOT facilities were evaluated. The LOS values for the segments between the intersections in the future year 2025 were determined with the help of the SYNCHRO Version 6.0. As the basis for analyzing the future alternatives, a traffic model was created using SYNCHRO for the existing conditions along SH 35 and Mykawa Road. Chapter 23 - Basic Freeway Segments Methodology of the HCM 2000 was used for performing the LOS for each Freeway, Tollway and HOT facility type Alternatives. The primary outputs determined by this analysis methodology are LOS, Number of lanes and Flow rate. Also, in the process of obtaining primary outputs, performance measures such as density and speed were calculated. Each facility can be characterized by three performance measures, which are density, average speed, and volume to capacity ratio. In this study, density was used as the measure to estimate the level-of-service (LOS).  Data was received from EMME2 in GIS Format .Coded network in Synchro 6. (Ran from 610 to Angleton along SH 35 app 40 miles). Completed analysis for existing and proposed alternatives (determined LOS and V/C Ratios). Optimized the signal timing for TDM/TSM alternatives using Synchro.

FM 646 Route Study and Schematic – AIA was responsible for obtaining 24-hour tube counts along FM 646 at the north and south frontage roads at IH-45, FM 517, FM 1764, and SH 6, located in Galveston County. In addition, AIA collected turning movement counts at five major intersections, and studied existing conditions, 2010, and 2020 future conditions. Traffic analysis completed based on the Highway Capacity Manual and determined the peak hour volumes and the daily hourly volumes. The LOS was then determined for each intersection based on the existing conditions and recommended conditions.

SH 288 to Dow Entrance Rd, Brazoria County – Developed traffic signal design, traffic control plans, signing and pavement markings, stormwater pollution prevention plans, quantities, and cost estimates.

 

TxDOT WACO DISTRICT

SH 36 Bridge Replacement at Lake Belton – AIA was the Task Leader responsible for preparing Signing and Pavement Marking plans for 2 miles of 2-lane rural highway including the bridge over Lake Belton in the Waco District. The roadway for this project was realigned to match a future 4-lane divided highway, traffic control plans were completed, and signing was coordinated with USACE.

FM 2305 Widening, Belton – Project included signing and pavement markings layout for this 2.5 mile, 4-lane CLTL roadway from FM 2271 to FM 317.  Also included signing and pavement markings for a new interchange at FM 317.  Lighting included underpass lighting for 6 mainlanes and two U-turn lanes at the FM 2305 bridge over SH 317, as well as the lighting for ramp entrances and exits.  All circuit designs, service pole locations, quantities, general notes and construction cost estimate were prepared.

US 84 Bridge Widening, Mexia – Plans for continuous lighting on bridge and approaches. Poles were placed on C411Railing. All circuit designs, service pole locations, and quantities, were prepared. Coordinated with TXU for service drop location and pole type. Used GE’s Aladdin software to determine optimal pole placement.

SH 317 at FM 93 / 6th Avenue – AIA updated signal layout from span wire to mast arm configuration with VIVD cameras and pedestrian poles.

 

TxDOT EL PASO DISTRICT

US 62 / US 180 Montana Illumination – Completed PS&E for approximately 6500 LF of continuous illumination for divided urban roadway. Poles were placed in the median. Provided utility coordination with 17 companies. Coordinated four utility drop locations with El Paso Electric. All circuit designs, service pole locations, quantities, general notes & construction cost estimate were prepared.

Border Safety Inspection Facility, BOTA Facility – Lighting alternatives were evaluated by creating photometric arrays in GE’s Aladdin Plus lighting software.  Scope included engineering and architectural services required for the PS&E for the BSIF. High mast lighting layout was designed for the parking facility. Service location was coordinated with the MEP engineer at the building site.

Border Safety Inspection Facility, Zaragoza Facility – Lighting alternatives were evaluated by creating photometric arrays in GE’s Aladdin Plus lighting software.  Scope includes engineering and architectural services required for the PS&E for the BSIF. High mast lighting layout was designed for the parking facility and roadway lighting for all access roads to the facility. Service location was coordinated with the MEP engineer at the building site.

 

TxDOT SAN ANTONIO DISTRICT – LOOP 1604 TOLL STARTER

AIA Engineers provided engineering services to support the CDA program for the Loop 1604 and SH 281 project, from IH 35-E to IH 10-W (22.71m). This involved preparation and review of the 2A document in the areas of illumination, signalization, toll gantry locations, drainage permitting and preparation of an overall signing layout including toll lanes. Project also included review of the schematic for verification of the geometry for all mainlane and direct connectors for the entire project.

AIA completed the large sign schematic for 22 miles of toll and non-toll lanes on Loop 1604. Included signing for 5 interchanges and direct connectors for the toll and non-toll lanes.  Signing schematic was designed in accordance with the TxMUTCD for freeways and toll facilities.

AIA provided an illumination needs analysis for 4 interchanges along Loop 1604, Bexar County, Texas.  Analysis included high mast lighting where appropriate at the center of the interchanges, conventional roadway lighting on the approaches, transition locations for high mast to conventional, transition locations for end of interchange lighting, recommended light level analysis for the various sections.  Ensured that interchanges met minimum light levels as required by the TxDOT illumination manual.

 

TxDOT ABILENE DISTRICT – IH 20 RAMP ILLUMINATION

Prepared plans for safety lighting at ramp entrances and exits, including all circuit designs, service pole locations, quantities, general notes and construction cost estimate.

ON-CALL ENGINEERING DESIGN SERVICES FOR INTERSECTION REDESIGN PROJECTS, HOUSTON, TX
The purpose of this on-call contract was to provide the City with professional engineering service for various roadway/intersection improvement projects throughout Houston. The intersection redesigns included improving traffic circles (Benignus at Perthshire and Kingsride) to allow for better truck movement, closing off existing neighborhood streets to re-route traffic (Bagby at Hawthorne and Randall @ Durham), and providing landscaped islands (Bagby at Hawthorne). This contract also called for a new roadway extension (Swingle from Leitrum to Scott). This design included 24' asphalt pavement, open ditches, a box beam bridge culvert, and tying this road to 6 neighborhood streets. Traffic control plans were also developed for two railroad crossing reconstruction projects along with the improvement projects mentioned above. Traffic studies (Longpoint at Bingle and Wirt) were completed to analyze existing and future traffic capacity and signal phasing. These studies also included LOS analysis. Several of these neighborhood projects included Public Involvement meetings.

METRO ON-CALL TRAFFIC ENGINEERING SERVICES, HOUSTON, TEXAS

Updating traffic signal layouts, cost estimates for construction, and field books for over 100 intersections in the Harris County area as part of the RCTSS regional traffic control system. Field inventories were completed. Data was compiled into an Access Data Base.  Pictures were taken at every intersection showing each approach, cabinet and meter. Field visits were made to all of these intersections to look at the type of cabinet and controller at each location. AIA was charged with determining if these two items, along with communications items, should be changed based on several factors outlined by METRO. In addition, AIA updated the intersections to include opticom detectors for METRO buses. This project required converting the existing signal timings to the DB Editor software.  Field inventories were completed for over 200 intersections.

 

COMPUTERIZED TRAFFIC MANAGEMENT SYSTEM, HOUSTON, TEXAS

Designed and prepared Computerized Traffic Management Systems (CTMS), communication cable routing plans, CTMS local control unit (LCU) and communications hardware details, HOV ramps control signal and coordination with TxDOT, CTMS gates and changeable message signs. The services for HOV lane signals, modernization and development of conceptual designs were prepared in compliance with TxDOT Standards for signal design and CTMS communication and interface standards.

 

DETAIL DOWNTOWN/MIDTOWN SIGNAL DESIGN/TRAFFIC CONTROL, HOUSTON, TEXAS

Designed traffic signal and traffic control plans with standard specifications, general layout of future signal communications system, and METRO/City interconnect system in accordance with RCTSS standards and guidelines of the intersections on Travis Street from Pierce to Commerce, on San Jacinto Street from Holman to Pierce and from Pierce to Commerce.

 

REGIONAL COMPUTERIZED TRAFFIC SIGNAL SYSTEMS, HOUSTON, TEXAS

Traffic analysis and traffic signal warrant studies, in support of the RCTSS for the following locations: Inner I-10 Corridor, 37 intersections; Inner West Corridor, 23 intersections; Northeast Corridor, 16 intersections.

 

HOVL RAMP CONTROL SIGNALS AND VERTICAL GATE SYSTEMS, HOUSTON, TEXAS

Performed detail design and engineering support services for the ramp control signal and vertical gate system at six locations. All plans were prepared in accordance with TxDOT (CTMS) Standards and Specifications. The design included geometric changes, CTMS communication cable routing plans, traffic signals, vertical gate, detector layouts, and all structural, electro mechanical sign layout and installation details. The engineering services comply with TxDOT Standards for design and computerized traffic management system (CTMS) and METRO Standards for design and regional computerized traffic signal system (RCTSS), and interface standards.  Preliminary and final design plans for HOV Lane ramps control signals, traffic control plan, activated vertical gate systems, traffic loop detectors, electro mechanical sign layout details, coordination with TxDOT CTMS gates and chargeable message signs, and CTMS local control unit (LCU) and communicators.

 

NORTH DIAMONDHEAD BLVD, HOUSTON, TEXAS

Managed traffic data collection and traffic study to determine improvements at the intersection of N. Diamondhead Blvd. and FM 2100. Also included design of 1-mile roadway boulevard section, bridge, perform signal warrants and traffic studies, bridge hydraulics, modify existing HCFCD model for Gum Gully, drainage calculations, intersections improvements, signal layout, signing, pavement marking, traffic control plans and SW3P.

 

KEMPWOOD TRAFFIC SIGNAL AT SAM HOUSTON TOLLWAY, HOUSTON, TEXAS

Assisted in the design and plan preparation associated with the Kempwood Boulevard project, from Brittmoore Street to Beltway 8.  Assignment was for the design of the Kempwood, southbound and northbound frontage road signals.

 

MESA ROAD IMPROVEMENTS & SIGNALIZATION, HOUSTON, TEXAS

Performed traffic warrant studies, LOS analysis prepared traffic signal layout and interconnect layout for four intersections on this project. The project scope called for widening this roadway from two lanes to four divided lanes.

 

WEST LITTLE YORK ROAD RECONSTRUCTION, HOUSTON, TEXAS

Traffic control plans and design and preparation of geometric and roadway plans for the roadway widening to two 24-foot divided curb and gutter concrete road and 15-foot wide island with exclusive left turn lanes at the intersection with Queenston Blvd.

RTE 58 CORRIDOR STUDY, MARTINSVILLE, VA
Responsible for traffic data analysis at 60 locations on 241-mile from Jonesville, Virginia to Martinsville, Virginia. Development of alternative alignments and profiles using USGS maps. Development of typical cross sections and participation in public information meetings. Identify crossings requiring bridge structures on alternative alignments. Determine land use and prepare cost estimates. Prepare artistic renderings of certain key areas sensitive for public perception and provide recommendations for VDOT.

FM 1314 WIDENING TRAFFIC STUDY, CONROE, TEXAS
Provided traffic counts, intersection analysis and design layout for 12 intersections on FM 1314 Schematic from Loop 494 to SH 105. Completed a traffic study evaluating existing and future traffic data using HCS with existing and proposed intersection layouts. Prepared exhibits for Public Involvement Meetings.

INDEPENDENCE BLVD. OVER STAFFORD RUN, MISSOURI CITY, TEXAS
AIA performed traffic study and signal design at intersections of Independence Blvd. At FM 1092, Fifth Street and Staffordshire, meeting TxDOT Standard and Missouri City Standard.

BELTWAY 8 SOUTH, IH-45 TO SH3, HOUSTON, TEXAS
Prepared final design plans, specifications and estimate associated with the following tasks: thru-phase traffic control plans, signing-small and large (overhead structure), pavement markings, signals at SH3, high mast and conventional roadway lighting.

 


Copyright © AIA Engineers, Ltd., Houston, Texas USA 2009