DCKA-2026-B-0087_Amd2.pdf

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Attached to
Traffic Signal Controller Replacement  Phase 1
Solicitation number
DCKA-2026-B-0087
Issued by
District of Columbia

About this file

This is an amendment document for a District of Columbia procurement related to the Traffic Signal Controller Replacement Phase 1 project. The contract involves the procurement, programming, configuring, installation, testing, and integration of new advanced transportation controllers and conflict monitor units across 1,584 signalized intersections throughout the District of Columbia. The original solicitation was posted on April 2, 2026, with a proposal submission deadline of April 23, 2026, allowing interested vendors a 21-day response period. The project represents a comprehensive transportation infrastructure modernization initiative requiring contractors to deliver complete end-to-end solutions including equipment selection, system configuration tailored to district specifications, professional installation at each intersection location, rigorous testing protocols to ensure functionality and safety compliance, and seamless integration with existing transportation management systems.

The specific pricing terms, contract value, payment structure, set-aside designations, disadvantaged enterprise restrictions, incumbent vendor information, and detailed technical specifications are not provided in the available summary information. Contractors should obtain the complete amendment and solicitation documents from the District of Columbia's procurement office to identify applicable small business certifications, minority-owned enterprise (MBE) preferences, women-owned enterprise (WBE) considerations, integration requirements with existing traffic management infrastructure, compatibility standards with current systems, technology platforms or protocols in use throughout the district's traffic signal network, and any phasing or milestone-based compensation arrangements associated with this Phase 1 implementation.

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DCKA-2026-B-0087_Amd1.pdf PDF

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Text version

Copyright © 2022 Q-Free. All rights reserved. Revised 4 Jan 2022.

www.q-free.com | info@q-free.com

MODERN PLATFORM

• Linux operating system

• Linux and API library

• Software development kit (SDK) provided at no charge to qualified ATC software developers

• Unrestricted use license for NTCIP MIBs

• 128 x 256 pixels OLED display (16x40 characters)

• 4x4 and 3x4 tactile keyboards

• Motorola MPC8248, 32-bit processor, 400 MHz

(750 MIPS)

• 64MB Flash memory

• 128MB DRAM

• 2MB SRAM

• 10/100 Mbit Ethernet ports (4)

• USB (3)

• AUX Serial (1)

• SD Card (1)

• External SDLC port (NEMA cabinets)

• C12S SDLC/HDLC (ITS/ATC cabinets)

• RS232 external serial port (1)

• Integrated GPS/GNSS

• ATC 5201, current

• ATC API 5401

• NEMA TS 2-2016 v3.07

• NTCIP - 1201, 1202, and applicable base standards

ON-BOARD WEB SERVER

Secure, modern communications for traffic operators to access controller functions wirelessly or via wired Ethernet connections from any internet-enabled device (smart phone, tablet, laptop).

• 40 phases, 16 rings, 32 overlaps, 16 preempts

• HTTPS communication between device and Q-Free central system

• Advanced functionality comes standard

– Master/closed loop

– Peer-to-peer communications

– Transit signal priority

See MAXTIME ic product sheet for more details.

TECHNICAL SPECIFICATIONS

Form factor: Shelf or rack mount Dimensions*

(HWD):

Rack Mount 7” x 18.8” x 7.8”

17.8 x 47.8 x 19.8 cm

Power: Variable power supply (89-250 VAC 50/60 Hz, or 48VDC)

Power connector: Standard power cord Temperature: -40°C to +80°C

* Dimensions rounded to nearest 0.1

XN ITS Controller

File details come from the government source that posted it. Updated .