B
HomeLibrariesCode AISearchProjectsBookmarksAddress
FeedbackHelp Desk
Libraries
Estimate & calculate
CalculatorsChecklists
PricingLog in
INTELLIGENT TRANSPORTATION SYSTEM (ITS) DEVICES

1236MAINTENANCE, CHANGEABLE MESSAGE SIGNS (CMS)

PA · 2026 Standard Specifications✓ Full text on BuildSpecBook pages 1425–0 Save this section

Ask about Section 1236

Get a cited answer from the section text. Click the citation to check it.

One cited answer a day is free. Start a 14-day trial for unlimited, no card required.

1236.1DESCRIPTION—This work is to furnish, install, modify, repair, replace, and remove components

of a Changeable Message Sign (CMS) subsystem.

1236.2MATERIAL—Section 1230.2

1236.3CONSTRUCTION—Section 1230.3 and as follows:

(a)Preventive Maintenance (PM).
1.General. Section 1206.3(a)1
2.Site. Section 1206.3(a)2
3.Enclosures. Section 1206.3(a)3
4.Structure. Perform a visual inspection for wear, rust, cracks, missing, damaged or bent parts, loose

connections, frayed cables, and general condition. Check attachment hardware and anchor bolts for rust and tightness. Check welds for cracks and rust. Notify the Representative immediately upon discovery of any structural or electrical abnormalities.

5.Sign. Test operation of sign, all lamps and LED clusters, fiber bundle and pixels, and perform

diagnostic tests. Verify that all LED and fiber pixels are functioning from the control enclosure. Visually inspect and ensure all LEDs are illuminated, and check brightness to ensure photocell is properly functioning. Do this according to the manufacturer’s testing procedure by using the keyboard and display in the CMS control enclosure or using a laptop computer and connecting to a communications/data connector in the control enclosure. Pixel test can also be performed remotely from the TMC. Software will be provided by the Department if necessary. Clean surface of signs. Test communication system to verify communications between CMS and TMC.

(b)On-call Maintenance.
1.General. Section 1206.3(b)1

After On-call Maintenance (OM) has been completed, perform PM as described in Section 1236.3(a).

2.Responsiveness. Section 1206.3(b)2

1236.4MEASUREMENT AND PAYMENT—

(a)PM, CMS Subsystem. Each

All labor, materials, and equipment required for routine preventive maintenance are incidental to this item including, but not limited to , the Statewide Device Identification Number, cleaning materials, caulk, metal meshing, lubricants, filters, lamps, paint, surge suppressors, fuses, circuit breakers, attachment hardware, insect prevention measures, rodent control measures, clearing and grubbing, selective tree trimming, snow and ice removal, and weed control measures. Mobilization is incidental to this item.

(b)OM, CMS Subsystem Mobilization. Each

Mobilization will not be paid for procurement of parts. Travel to and from the site and district stockpile is incidental to this item.

(c)OM, CMS Subsystem Repair. Hour

Repair time will not be paid for procurement of parts. Travel to and from the site and district stockpile is incidental to this item. Site specific snow and ice removal requested by the Department is included within this item.

(d)OM, CMS Subsystem Parts. Dollar

Includes all cables, connectors, equipment racks, conductor(s), and other parts necessary for proper installation and configuration of a CMS subsystem.

(e)Maintenance and Protection of Traffic. Section 901.4(a)

Get an email when 1236 changes

Pennsylvania revises spec sections through supplementals and new editions. We check this one every week and email you the day it changes. Free, no account.

Source: Publication 408 Highway Construction Specifications, 2026 Edition. Pages 1425–0 of 1,522. View official source ↗

Ask about this section

Scoped to Pennsylvania Publication 408 — Specifications, Section 1236 — MAINTENANCE, CHANGEABLE MESSAGE SIGNS (CMS). Every answer cites the section it came from, with a verification date — don’t trust a percentage, click the citation.