Rail Alignment

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Overview
How it Works
Benefits
Reports and Audits
High Speed Rail Projects

Overview

Trimble Quantm Alignment Planning Solution simultaneously manages all environmental, cultural and community issues involved in planning a new freight, passenger or high speed rail project. In doing so, it substantially reduces the planning time and alignment construction cost.

Using the service, a project planner can investigate literally millions of alternative alignments for any given set of constraints. The system enables a holistic approach that integrates all elements and delivers a range of alignment alternatives that best meet the relevant environmental, cultural, social, engineering and cost constraints. The resulting options can be analyzed quickly to address stakeholder concerns and maintain the momentum of the rail project.

How it Works

Trimble Quantm Alignment Planning Solution is offered in a cost-effective and secure client/server business model, with significant collaborative input from the Trimble team of transportation engineers and Geographical Information System (GIS) technicians. The optimization workflow follows 6 easy steps:

The optimization workflow follows 6 easy steps:

  1. Initial client set-up and training,
  2. Data and database coordination,
  3. Data input by project planner,
  4. Alignment generation on the Quantm Pathfinder engine,
  5. Return and review of 10-50 optimal alignments per scenario, and
  6. Analysis and manipulation by the project planner.

Resulting alignments can be easily exported to CAD, GIS and 3D visualization software packages for preparation of presentation materials, or completion of the detailed design.

Benefits

The Trimble Quantm Alignment Planning Solution allows planners and engineers to collaborate with various road project stakeholders and deliver improved outcomes. The process maintains positive community relations, considers environmental impact, and reduces project construction costs - all while maintaining the momentum of the road project.

Improved Community Relations
Communities globally are increasing the influence they have over where new roads are created. The combination of community input and the need to avoid certain urban areas, cultural heritage zones and areas of environmental sensitivity have made the planning process extremely complex.

The Trimble Quantm Alignment Planning Solution allows community input to be integrated into the planning study. Community "no-go" constraints can be added in just minutes. Cost implications and alignment alternatives can be reviewed within 48 working hours.

Better Environmental Outcomes
The National Cooperative Highway Research Program (NCHRP) and the Transportation Research Board (TRB) Research Results Digest 304, describes eight technologies that can be used by transportation agencies to improve the consideration of environmental concerns in transportation decisions.

The Trimble Quantm Alignment Planning Solution was identified as one of these emerging technologies that support the integration of environmental considerations into transportation planning. For more information, download the "Technologies to improve consideration of environmental concerns in transportation decisions" full report.

Reduced Project Planning Time and Delays
The current industry approach to railway planning addresses each constraint issue in series, which often leads to conflict between the stakeholders and requires numerous subsequent impact studies. This can lead to a planning spiral that delays, or even terminates, a project.

The Trimble Quantm Alignment Planning Solution encourages cooperation between the project planners and stakeholders from the onset. Planners can quickly investigate alignment and cost implications of numerous 'what if' scenarios simultaneously. As a result, planners can demonstrate they have considered all feasible alignments and substantially improve the quality of the alignment without project delay or cost increase.

Railway Construction Cost Savings
The Trimble Quantm Alignment Planning Solution delivers substantial alignment construction cost savings while meeting the defined environmental, community, heritage and design constraints.

Typical alignment construction cost savings, in undulating or rougher terrain, are in excess of 15% for highways, when compared to results determined using the previous industry best practice planning method.

Lowest Total Cost of Ownership
The Quantm system enables sensitivity analyses to be carried out rapidly to determine alignment and cost implications of changes to constraints. This type of analysis directly feeds into, and supports, decisions leading to the selection of a 'preferred' alignment. When combined with Rail simulation software the trade-offs between construction costs and operating costs can be investigated and the alignment can be refined using new constraints to achieve the lowest total cost of ownership.

Reports and Audits

As more governments require extensive impact studies and supporting documentation, the Trimble Quantm Alignment Planning Solution has become an essential tool for rail planners. From stakeholders and governments, through to environmental groups, community organizations, and project financiers, numerous groups want to know that their concerns are being addressed when creating new railways.

Planners and engineers can use the Trimble Quantm Alignment Planning Solution to prepare in-depth impact studies and public presentations. The software allows presentations to display the complete route or zoom-in demonstrating how an alignment impacts or avoids a particular zone or landowner, including the earthworks footprint.

The planner can also provide a process audit that tracks individual scenario investigation, consideration of alternatives and costs, and document the methods used in reaching a 'preferred' corridor or alignment.

The Application of Quantm for High Speed Rail

The Quantm technology has been used for planning high speed rail1 projects around the world from initial scoping studies to pre-feasibility and detailed feasibility studies. A list of past and current projects is below:

 Country  Project Length (km)  More Information
 Australia  East Coast High Speed Rail 1,800  
 Brazil  Rio de Janeiro to San Paulo 565  
 China  Beijing-Shenyang 660  Read the Case Study
 China  Harbin-Jiamusi 336  
 China  Harbin-Modanjiang 290  
 China  Shangqu-Hangzhou 750  
 China  Qingdao-Lianyungang 153  
 China  Meizhou-Pucheng 544  
 China  Sanmenxia-Shiyan 292  
 China  Yuxi-Mohan 532  
 China  Zhongwei-Lanzhou 227  
 China  Jinhua-Jiande 67  
 Portugal  National Network 1,080  Read the Case Study
 Russia  Moscow-St. Petersburg 660  
 United States  California High Speed Rail 320  Read the Case Study
  Total 8,276  

1High speed rail projects are projects designed for operation at speeds in excess of 250km/hr in accordance with the International Union of Railways