Presentation on the development of a design manual for Mississippi Dept of Transportation's Intelligent Transportation Systems group.

1. ITS Design Manual Overview

2. Purpose
• So designers can create concept to
complete plan set and spec package for
MDOT ITS projects or other municipal
ITS projects.
• Uniform guidelines and design criteria for
ITS elements implemented on MS urban
freeways, rural freeways, urban arterials
and rural roadways.
• Manual doesn’t address specific details
designers encounter, so must confirm
assumptions with ITS Program Manager.

3. Typical ITS design elements
• Electrical power location
• Fiber optic communications infrastructure
• Dynamic Message Signs (DMS)
• Closed-Circuit Television (CCTV) system
• Radar Detection System (RDS)
• Video Detection System (VDS)
• Road Weather Information System (RWIS)
• Highway Advisory Radio (HAR)
• Communications Hut building and equipment
• Transportation Management Center (TMC)
equipment

4. Design Manual Organization
• 1 – Introduction
• 2 – General Design Guidelines
• 3 – Power Source Design and Placement
• 4 – ITS Communications Design
• 5 – Dynamic Message Sign Design
• 6 – Closed Circuit Television System (CCTV) Design
• 7 – Radar Detection System Design
• 8 – Video Detection System (VDS) Design
• 9 – ROAD Weather Information System Design
• 10 – Highway Advisory Radio Design
• 11 – HUT Building Design
• 12 – HUT Equipment Design
• 13 – Traffic Management Center Design
• 14 - Smart Work Zones
• 15 – PS&E Assembly for ITS Projects
• 16 – Appendices

5. Introduction
• Project Development Process
• Use SEMP for SEA then Design Manual
for plan development
• SEMP refers to project development
process:
• 1) Develop Concept of Operations
• 2) Develop system requirements
• 3) Develop Project SEA
• 4) Detailed Design – this manual
• Steps in Chapter 14 – key are design
concept and SEA

6. General design guidelines
Provides overall guidance for preliminary
placement – Details in Sections 3 – 12
• Concept Development
• Meet w/ District & ITS staff for scope and limits.
• Research other planned projects and coordinate
with others
• Use aerials or plan sheets showing existing
alignment and can obtain field control for scaling
• Concept Review

7. Deployment guidance
7

8. General design guidelines steps
• General Device Placement
• Before Field Visit
• While On Field Visit
• Guardrail Considerations

9. Power Source Design
• Starts in Concept phase
• Early Coordination Required
• What to show on plans
• What are demarcation locations
• When you may need transformer
• Urban vs. Rural area Considerations
• Verify obstacles for routing

10. ITS Communications Design
• Conduit / Fiber Optic Cable Placement Guidelines
• Freeways
• Urban Arterials
• Rural
• Other Agencies
• Wireless and Least Broadband
• Field Location Considerations for Fiber / Conduit
• Cable Pull boxes and Electrical Pull Boxes
• Options
• Cable Type, Construction, Fiber Mode, Count, Reel to Reel
Splicing, Conduit Types
• Fiber Allocation
• Communications Design Examples

11. Fiber Allocation
• Communications Path
• Strategies:
• Existing vs. New Device Cases; Daisy Chain
• How Many Drops / Pair
• Which Fibers are Used
• Switch Selection
ITS Field HUT/Control
Drop Cable Trunk Cable
Device Center

12. Communication Design Examples
Typical PTZ Camera
Connected to encoder and IP
network
P
T
Z SP 650
Composite Cable
Power
Data (232/422/485)
Video
Surge Block Video
Encoder
DATA SP 662
Network
Cable
Switch
Spare Jumper spliced to (A or B)
Rose and Aqua on Orange SP 658
trunk buffer
Type 5 Pull box
12 count drop cable splice
to orange trunk
Fiber Trunk (72 SM Standard)

13. ITS Device Design Sections
• Goal / Concept
• Gives Special Provision #, and refers to plan
sheets / detail sheets that may be required
• Placement Guidelines
• Urban Freeways
• Urban Arterial Streets and Highways
• Rural
• Field Location Considerations
• Additional Sections for additional
documentation as needed (DMS Types for
Example)

14. TMC Design
• Equipment Room Layout
• Equipment Rack Elevations and
Equipment Interconnections
• Operations Area Layout
• Electrical and Environmental
Infrastructure
• Construction Coordination

15. Smart Work Zones
• Guidelines and Process
• Special Provisions

16. PS&E Assembly
• Includes plans, standard specs, all special provisions,
NTBs, construction cost estimates, all approved
agreements with railroads, utilities, and municipalities,
the proposal assembly and the utility and ROW
certificates.
• Ch 15 of Roadway Design Manual
• Typical Workflow
• Contract Plans
• Specs
• Special Provisions
• NTBs
• Cost Estimates
• ITS-Related Permits & MOAs/MOUs

17. ROADWAY/BRIDGE DESIGN TASKS ITS DESIGN TASKS
PHASE A: RIGHT-OF-WAY PLANS SYSTEMS ENGINEERING & PRELIMINARY ITS PLANS
Attend Roadway/Bridge Scoping Meeting Attend ITS Scoping Meeting w/ ITS Program Director
Prepare/Submit Conceptual Plans Prepare/Submit Draft Systems Engineering Analysis (SEA)
Attend Conceptual Plans Review Meeting Prepare/Submit Draft Preliminary (50%) ITS Plans *,
Specifications List and Planning-Level Const. Cost Estimate
Prepare/Submit Preliminary R.O.W. Plans Attend Review Meeting w/ ITS Program Director
Prepare/Submit Field Inspection Plans Prepare/Submit Final SEA & Preliminary (50%) ITS Plans *,
Specifications List and Planning-Level Const. Cost Estimate
Attend Field Inspection Coordinate with ITS Program Director to develop all required
permits (e.g., rail crossings) and MOUs with other agencies
Prepare/Submit Final R.O.W. Plans
If above tasks are not completed in conjunction
with Phase A: Right-of-Way Plans, the designer
shall complete within first 90 days of Phase B.
If a stand-alone ITS project, the designer shall
complete all tasks in accordance with the
mutually agreed project schedule.
PHASE B: CONTRACT PLANS FINAL ITS PLANS & SPECIFICATIONS
Attend Roadway/Bridge Design Conference
Prepare/Submit Office Review Plans Prepare/Submit ITS Office Review Plans, Specs. & Estimate
(95% Submittal)
Attend Roadway/Bridge Office Review Attend ITS Office Review w/ ITS Program Director
Prepare/Submit Final Contract Plans Prepare/Submit Final ITS Plans *, Specifications & Estimate
(Roadway/Bridge PS&E Assembly) (PS&E Assembly)

18. SHEET DESCRIPTION WORKING NUMBER(S)
Title Sheet -
Detailed Index & ITS Legend DI-1
General Notes GN-1
Summary of Quantities – recap of all project quantities SQ-1, SQ-2… SQ-n
Estimated Quantities – sheet-by-sheet & other special qty. tabulations EQ-1, EQ-2… EQ-n
Project Location Plan – serves as key map for ITS Plan Sheets LP-1
ITS Plan Sheets:
Mainline – identify route/street name and station limits ITS-1, ITS-2… ITS-n
Additional route/street names and station limits, as required ITS-p, ITS-q… ITS-z
Special Design Sheets:
Aerial-Supported Conduit – structure attachment details ASC-1, ASC-2… ASC-n
Cabinet Details – details for Type A, B or C cabinets, where req’d. CAB-1, CAB-2… CAB-n
CCTV Details – details for pole- or structure-mounted CCTV cameras CCTV-1, CCTV-2… CCTV-n
DMS Details – includes elevation- and plan-view clearance diagrams DMS-1, DMS-2… DMS-n
and other details for each overhead and roadside DMS installation
Erosion Control Plan – misc. notes/details, as req’d. by project scope EC-1, EC-2… EC-n
Equipment Details – structure attachment details ED-1, ED-2… ED-n
Fiber Optic Details – includes details for conduit trenching & boring; FO-1, FO-2… FO-n

19. DMS Details – includes elevation- and plan-view clearance diagrams DMS-1, DMS-2… DMS-n
and other details for each overhead and roadside DMS installation
Erosion Control Plan – misc. notes/details, as req’d. by project scope EC-1, EC-2… EC-n
Equipment Details – structure attachment details ED-1, ED-2… ED-n
Fiber Optic Details – includes details for conduit trenching & boring; FO-1, FO-2… FO-n
pull boxes; termination cabinets; FO cable splicing, storage & mgmt.
HAR Details – coverage area, system details & sign details HAR-1, HAR-2… HAR-n
Electrical Details – misc. notes/details pertaining to power service POW-1, POW-2… POW-n
RDS Details – pole- and structure-mounted radar detector details RDS-1, RDS-2… RDS-n
Traffic Control Plan – misc. notes/details, as req’d. by project scope TC-1, TC-2… TC-n
Traffic Control Details – misc. sheets furnished by RWD Division TCP-__
Other detail sheets – as required by project scope -
Standard Roadway Design and/or Bridge Design Drawings:
Note: Standard drawings to be chosen from list, based on project scope. -

20. Appendices
• A – Plans Checklist – What is needed
for 50% - 100% Submittals
• B – Model Sheets
• C – Typical Label Formats
• D – Special Provisions (latest at time
of design manual published version)
• E – Example Notice to Bidder
Documents