C2 Consulting Collective

Mobility & Technology in Transportation

Website

About the firm

C2 Consulting Collective is a full-service transportation planning and traffic engineering design practice serving public and private sector clients in California and internationally. It advocates for integrated and sustainable mobility solutions through safe systems design and applied research, supporting smart land use development and leveraging technology to deliver results for project partners, public agencies, and communities.

Team
Micro
Firm type
Transportation Engineering

Credentials

CEQA Consultants List - Transportation Traffic · Qualified Traffic Consultant · Pre-Approved Consultants List - Traffic

People

Roxannabelle PerfectoDesign Group Leader

Brian DamianiPlanning Group Leader

Yasmin PorfirioTransportation Engineering Aide

Walter B. MusialCo-Founder

Capabilities

Transportation Planning and Environmental

Formulates long-range mobility strategies and conducts environmental impact assessments to support sustainable development. The team evaluates multi-modal access, pedestrian integration, and community safety while navigating regulatory frameworks.

  • Vehicle Miles Traveled Analysis
  • CEQA and NEPA Support
  • Active Transportation and Pedestrian Mobility
  • Transportation Demand Management
  • Vision Zero and Safety Planning
  • Emergency Evacuation Modeling

Traffic Engineering Design

Prepares precise construction documents and operational layouts to optimize roadway safety and efficiency. This includes detailing signals, signing, striping, and temporary traffic control measures.

  • Traffic Control Plans
  • Signing and Striping Plans
  • Traffic Signal Design
  • Communications and Interconnect Plans
  • Conceptual Roadway Layouts

Transportation Operations

Analyzes real-world traffic patterns, transit networks, and parking configurations to resolve capacity and safety challenges. Services address complex facilities such as airports, theme parks, and major event venues.

  • Traffic Operations and Level of Service
  • Transit System Analysis
  • Parking and Traffic Calming Studies
  • Specialized Facility Operations

Intelligent Transportation Systems

Integrates advanced technology and communications infrastructure to enhance roadway efficiency and support smart city initiatives. Solutions focus on real-time traffic management and data-driven infrastructure.

  • Adaptive Traffic Signal Control
  • Corridor Synchronization
  • Automated Parking Guidance and Signage
  • Smart Cities Integration

Emerging Technologies and E-Mobility

Deploys forward-looking data analytics and infrastructure planning to integrate modern electric and connected vehicle technologies. The practice designs solutions that adapt to evolving urban mobility trends.

  • Forecast Modeling and Big Data Analytics
  • Electric Vehicle Charging Infrastructure
  • Micro-Mobility and Integrated Solutions
  • Connected Vehicle Technology

Transportation Research

Conducts academic and applied research to advance industry knowledge in traffic safety, connected environments, and innovative infrastructure. Work is often completed in collaboration with university transportation centers.

Program Advisory and Peer Review

Provides independent technical oversight, staff extension services, and due diligence reviews for public and private sector clients. The practice assists with grant applications and ensures quality control on complex projects.

  • Technical Peer Review
  • Land Development Due Diligence
  • On-Call Public Agency Support
  • Grant Application Assistance

Industries

Transportation · Highways & Roads · Transit · Airports · Aviation · Government · Defense · Education · Healthcare · Hospitality · Residential · Retail · Sports & Recreation · Life Sciences · Religious · Affordable Housing · Senior Living · Industrial · Telecommunications · Wastewater · Water Supply · Parking · Bridges · Commercial · Mixed-Use · Rail · Parks & Open Space

Projects

Petco Park Gallagher Square 20th Anniversary

San Diego, CA · Sports & Recreation · Client: Petco Park

Project details

Transportation and traffic planning support for the Gallagher Square 20th Anniversary renovation.

San Diego International Airport Terminal 1

San Diego, CA · Airports · Client: San Diego International Airport

Project details

Traffic operations and transportation planning support for the Terminal 1 redevelopment.

Tesla Hollywood Diner

Hollywood, CA · Retail · Client: Tesla

Project details

Traffic planning and engineering design services for the development of the diner and charging location.