Services
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ANALYSIS
Integrated Traffic Planning & Operational Analysis
Context-Based Evaluation—Using a Systems Approach, we assess existing or proposed conditions, constraints, and opportunities to leverage roundabouts' unique operational characteristics.
Rodel v1.96 Roundabout Specific Analysis Software – Implements HCM and a Geometric Capacity Model for improved evaluation.
Capacity Optimization – Rodel prevents excessive or insufficient capacity to enhance safety and feasibility.
Iterative Design – Rodel enables informed laneage and geometric refinements through "what-if" analysis.
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GEOMETRIC DESIGN
Horizontal Design Optimization
Principle-Based Design: Design implements best practices from NCHRP Report 1043 and NCHRP Report 834.
Iterative Design Optimization – Assesses various sizes, shapes, and placements to achieve an optimal layout with minimal impacts and maximum benefits.
Comprehensive Documentation—This includes a roundabout report documenting adherence to safety principles, and design exhibits for review, revision, and implementation.
Survey-Correct CAD Designs—Considering the project team's input, we provide a final horizontal design layout ready for integration into plan development.
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Consistent Approach – Whether through Peer Review or Direct Design, we follow a comprehensive process to ensure optimal safety and operations.
SIGNING & MARKINGS
Wayfinding Package
Comprehensive Approach – We implement best practices and proven experience-based strategies to enhance and maximize driver comprehension.
Geometric Integration – Ensures pavement markings align with horizontal geometric design for optimal safety and operations.
Enhanced Multimodal Safety – Intuitive human factors based design improves understanding and navigation for all transportation modes.
Deliverables – Provide 2D layouts with key layout information for evaluation and final plan integration.
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In-Service/Post-Construction Reviews
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Vertical Design & Construction Detail
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Public Outreach; Consensus Building
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In-Service/Post-Construction Reviews
MTJ specializes in post-construction reviews and design modifications to improve the safety, comfort, and functionality of underperforming roundabouts.
We identify key adjustments, including lane modifications, geometric refinements, and signage and marking improvements, to enhance safety and performance.
Our comprehensive approach ensures cohesive design elements that maximize driver comprehension and safety. Grounded in human factors research, roadway design, and roundabout-specific safety principles, our proven expertise optimizes roundabout performance.
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Vertical Design & Construction Details
Roundabout vertical design and construction details are critical to operational effectiveness and safety.
MTJ evaluates vertical design, curb types, construction details, and material choices to ensure optimal performance, durability, and safety. Our review process enhances efficiency and ensures all elements work cohesively to support a well-functioning roundabout.
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Public Outreach; Consensus Building
We transform complex technical information into clear, visually engaging presentations. This approach effectively builds support among elected officials and the public.
Our visually rich 2D and 3D presentations help community members and decision-makers understand the rationale behind a proposed roundabout and its benefits. They also enable design and approval teams to review key issues and reach a well-informed consensus.
Adobe Creative Suite (Illustrator, Photoshop, In-Design, Acrobat), Lightwave 3D.
Peer Review or Direct Design?
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