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Module 11: Civil And Track Construction. “Nothing Like It in the World”. Objectives. Phasing & Planning Challenges Methods. Construction Phases. Permitting Subgrade Preparation Drainage Structures Substructure and Superstructure Utility Protection/Relocation Track Construction
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Module 11: Civil And Track Construction “Nothing Like It in the World”
Objectives Phasing & Planning Challenges Methods
Construction Phases • Permitting • Subgrade Preparation • Drainage Structures • Substructure and Superstructure • Utility Protection/Relocation • Track Construction • Signals and Communication • Support Facilities • Other Related Construction Issues
Critical Components Constructability Operations and Safety Access Issues
Constructability • Company Forces vs. Contractors • New Construction vs. Modifications • Climate • Material Availability • Permitting / Political Climate • Schedule
Climate • Time of Year • Excessive Heat or Cold • Depth of Frost • Wet Site Conditions • Snow Removal • Weather Related Safety • Climate Should Be Considered, When Developing Program and Project Schedules
Material Availability • Best-performing Material Not Always Readily Available • Material Selection Should Be Based on Economical Considerations • Unit Cost • Transportation Cost • Estimated Life Cycle • Maintenance Requirements
Permitting Environmental Building Code Land Use / Zoning Construction
Operations and Safety • Working Between Traffic or Near Operating Tracks • Use of Work Trains and Other On-Track Equipment • Operating Cut Over • Daylight Vs. Night-time Construction
Access Issues • Material Delivery and Storage • Staging and Laydown Areas • Equipment Access
Equipment Access • Access for equipment • On-track • Hi-rail • Off-track
Project Types Existing Yard Rehabilitation Existing Roadbed New Roadbed Greenfield Projects
Existing Roadbed Modification of Existing Roadbed (Before & After)
New Roadbed Before Track Construction
Construction Methods Prefabricated vs. Out of Face or “Stick Built”
Panel Turnout Concrete Turnout in place Turnout In Place Laydown Area
Out-of-Face Installation • Advantages • Minimize Train Disruption • Minimal Equipment & Manpower • Utilize Usable Material Already Installed • Suited for Simple Component Replacement • Disadvantages • Requires Skilled Manpower & Supervision • Labor & Time Intensive • Safety Concerns
Cut-In 1 2 4 3
Conclusion • Construction Planning Begins at Design. • Construction Planning is a Team Sport. • Construction Challenges Vary With: • Project Type, • Operations, and • Location. • The Right Tool for the Right Job. • Have a Plan…and a Backup Plan.