435.586.0174 info@laeng.com

Communications / Technology / ITS

We are a leader in the transit industry for the design and implementation of state of the art, open architecture, digital broadband data, and voice and video communications systems, technology implementations, and intelligent transportation systems.  These systems utilize Ethernet, fiber optic and wireless communications backbones, Synchronous Optical Networks (SONET), user friendly man-machine interfaces, and ergonomically friendly control centers.  Our engineering experience includes Communications Backbones, Security/Intrusion Detection, Software, Wired/Radio Communications, Telephone Systems, Vehicle Networks – Train, Bus Supervisors, CAD/AVL – Vehicle Management, Control Centers, Construction Management, Testing and Commissioning, Passenger Information Systems, and SCADA Systems.

  • Ethernet
  • Microwave/Wireless
  • CWDM, DWDM
  • SONET
  • Routing & Switching
  • Firewalls
  • Fiber & inner duct
  • Underground duct banks and conduit
  • Migration of Legacy Systems
  • Strategic planning
  • Closed Circuit Television System (CCTV)
  • Infrared illumination
  • Facility security systems
  • Tunnel security systems
  • Tunnel portal intrusion detection
  • Wayside intrusion detection systems
  • Perimeter security systems
  • Facial, license plate CCTV recognition systems, parking lot management
  • Vulnerability/Security assessments
  • Windows 95/98/2000/XP/7/8/10/NT/200-2016, Linux and Unix, servers and clients
  • Development of software specifications
  • Programming in Visuall C++, Visual Basic, VBA, Java, Javascript, Web applications, Structured Query Language (SQL)
  • Software Requirements Specifications (SRS)
  • Software Design Descriptions (SDD)
  • Software Validation and Verification Plans (SVV)
  • SCADA point database development
  • Control center software and graphics
  • Reviews of software source code
  • VHF, UHF, 700/800 MHz Rado
  • Analog and trunked radio systems
  • Mobile radio systems
  • Tunel radio systems
  • NXDN Digital radio systems
  • APCO P25 digital public safety radio
  • Point to point microwave links
  • ATCS Data radio – Railroads
  • CBTC, PTC wireless systems
  • WiMesh/WiFi/4G/LTE/WiMAX/3G/GS-GPRS wireless networking
  • 802.11,a,b,f,n, ac; 802.16d,e; 4.9 GHz public safety
  • Spread spectrum radio systems
  • Frequency hopping spread spectrum radio
  • Point to point, point to multipoint topologies
  • Wireless access points, repeaters, clients
  • Technology assessment
  • Propagation modeling/analysis
  • Interference investigation
  • Site surveys, coverage surveys
  • Regulatory compliance analysis
  • Voice recording
  • Radio towers
  • Vehicle radio, wiring, antennas
  • Voice over IP telephone systmes
  • Voice over IP gateways
  • Service telephones
  • Maintenance telephones
  • Emergency/fire telephones
  • Blue light stations
  • PBX, PABX, Channel Banks
  • Integration with PA and radio systems
  • Vehicle Area Networks (VAN)
  • On board data acquisition systems
  • On board CCTV systems
  • Automatic passenger counting systems
  • Vehicle to wayside wireless networks
  • Passenger internet systems
  • Automatic Vehicle Locator (AVL) systems
  • Computer Aided Dispatch / Automatic Vehicle Location systems (CAD/AVL)
  • Mobile data terminals
  • Mobile data communications
  • Vehicle integration
  • Software and graphics
  • Man/Machine Interface (MMI/HMI)
  • Control Center ergonomics design
  • Overview displays
  • Projectors, LED/LCD displays
  • Central control LANs
  • Site inspections
  • Response to RFIs, submittals, contractor design review
  • Resident engineers, contract administration
  • Construction safety certification
  • Test procedure development
  • Performance/Integration testing
  • Public Address systems
  • Visual messaging systems
  • Visual message signs/LCD displays
  • Station control units
  • Passenger internet information systems
  • Streaming content, HD video
  • Americans with Disabilities Act (ADA) compliance
  • Real Time passenger information systems, web integration , schedule information
  • Passenger internet systems, wireless, kiosks
  • Passenger wayfinding, GPS, audible signs
  • Traction power substation control and monitoring
  • Centralized traffic control
  • Fire and security systems
  • Station/wayside monitoring and control
  • PLCs/RTUs
  • Weather stations
  • Blue light stations
  • Station/Airport control panels
  • Point database, software, graphics, HMI

Featured Projects

Santa Clara Valley Transportation Authority Bus System

Hiawatha Light Rail System, Minneapolis, Metropolitan Council/Metro Transit

Tasman West Light Rail System, San Jose, Santa Clara VTA

FasTracks Light Rail & Commuter Rail (Systemwide) 7 Projects, Denver, Denver RTD