Engineering Safer Traffic Systems

M&X Engineering helps agencies, developers, and transportation partners make informed roadway decisions through practical analysis, planning support, and safety-focused engineering.

Our Story

Built for Clear Guidance

M&X Engineering is a PANYNJ-certified MBE firm providing transportation planning and traffic engineering services throughout the New York metropolitan area. The firm specializes in providing high quality of traffic design, engineering support, traffic analysis and simulation.

As a co-founder and principal, Stephen Mao, PE, brings over 20 years of experience in traffic and highway design. His expertise includes airport roadway and frontage design, MPT design, roadside safety appurtenance design, traffic signal design, and traffic signage and pavement marking design.

As a co-founder and principal, Cheng Xu, PE, PTOE, also brings 20 years of experience in transportation planning and traffic engineering. His specialties include traffic analysis, traffic simulation, construction traffic assessment and mitigation, and traffic data collection management.

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Engineering team collaborating in a planning meeting

How We Work

Our approach is grounded in technical rigor, practical communication, and a commitment to roadway safety at every stage of a project.

Aerial view of multilane urban traffic network
01

Analyze Conditions

We evaluate traffic patterns, site access, operational performance, and roadway context to identify the factors that matter most.

Traffic studies

Existing conditions review

Data-driven findings

02

Guide Decisions

We translate technical analysis into clear recommendations for agencies, developers, and project teams.

Planning support

Safety-focused strategy

Stakeholder coordination

Project team discussing transportation planning ideas
Urban roadway work zone with safety barriers
03

Support Delivery

From concept through review, we help clients navigate transportation requirements with responsive consulting and dependable documentation.

Technical consulting

Project responsiveness

Implementation readiness

A Team That Listens

M&X Engineering brings together analytical thinking, project coordination, and a service mindset to support transportation projects with confidence.

Team members collaborating around a conference table

Traffic Analysis

Focused on turning traffic data into practical recommendations for project teams and reviewing agencies.

Road safety work zone and urban street improvements

Roadway Safety

Dedicated to identifying risk factors and supporting safer outcomes for drivers, pedestrians, and communities.

Planning team in a project meeting

Planning Support

Helping clients align transportation needs with development goals, public processes, and long-term mobility planning.

Modern engineering office interior

Client Partnership

Committed to responsive communication, dependable deliverables, and collaborative problem solving from start to finish.

Mission

Practical Insight for Better Roads

We believe strong traffic engineering starts with understanding how people, places, and transportation systems interact in the real world.


That means combining careful analysis with recommendations that are clear, actionable, and aligned with project goals. Whether the work involves a traffic study, roadway safety review, or planning coordination, our role is to help clients make decisions with confidence.

We aim to deliver engineering guidance that is technically sound, easy to understand, and built around safer transportation outcomes.

M&X Engineering

By staying responsive and detail-oriented, we help project teams move from questions to solutions with less friction and better visibility into what comes next.