New Jersey · Consulting Engineers

Better movement.
Thoughtful
development.

Traffic engineering, transportation design, and site planning. Clear advice and considered solutions, from the first concept to agency approvals.

Explore our expertise ↗
Family-owned. Personally invested.Private development & public agenciesBased in Madison, New Jersey
01 / Our expertise

Every site has
its own questions.

We bring the analysis, design experience, and understanding of the approval process to help you find the right answers.

01

Traffic impact studies

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Understand how a proposed development will affect the surrounding road network. We evaluate traffic capacity, forecast trips, model intersections, and review on-site circulation to inform practical design decisions.

Capacity analysisTrip generationIntersection modelingCirculation review
02

Traffic signal & roadway design

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From an existing intersection to a new development, we plan and design traffic signals, roadway improvements, traffic calming measures, and coordinated signal systems. Our work connects engineering analysis with the agency approvals needed to move a project forward.

Signal designIntersection improvementsSignal coordinationRoadway designTraffic calming
03

Site planning & zoning

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Make the most of a site while addressing how it will function. We prepare site plans and support land-use and zoning variance applications, considering vehicle access, emergency access, pedestrian movement, and presentations to planning and zoning boards.

Site plansZoning variance applicationsAccess & circulationBoard presentations
04

Parking studies & design

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Plan parking around actual needs. We assess parking demand, shared-use opportunities, zoning requirements, and vehicle and pedestrian circulation for new developments and expansions.

Demand analysisShared parkingFeasibility studiesParking layout
05

Accident reconstruction

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Bring engineering perspective to the circumstances of a collision. We review roadway design, site conditions, and police reports to analyze crashes involving cars, trucks, motorcycles, and pedestrians.

Collision analysisRoadway evaluationExpert consultation
02 / Selected experience

Practical thinking.
Real places.

A selection of past work across public infrastructure and private development in New Jersey.

Archived project image — Route 3, Main Avenue and Allwood Road
Clifton, NJ · Transportation

Route 3, Main Avenue
& Allwood Road

Intersection and traffic signal design, roadway widening, and signal coordination, with Passaic County and NJDOT approvals.

ROADWAY DESIGN / SIGNAL COORDINATION
Archived aerial image of New Brunswick Parking Authority project
New Brunswick, NJ · Public sector

New Brunswick
Parking Authority

Site engineering, traffic engineering, and traffic signal design for the New Brunswick Parking Authority.

SITE ENGINEERING / TRAFFIC SIGNALS
Archived project image — Target in Fairfield
Fairfield, NJ · Retail development

Target
Fairfield

Traffic engineering, county road improvements and signal design, and NJDOT approvals supporting retail development.

TRAFFIC ENGINEERING / AGENCY APPROVALS
Explore all 13 projectsClose project portfolio
Executive DriveFort Lee, NJ
Archived project image — Executive Drive
From our project archive View full size ↗

Traffic engineering and NJDOT approvals for Executive Drive.

Avalon ResidentialFort Lee, NJ
Archived project image — Avalon Residential
From our project archive View full size ↗

Traffic engineering for the Avalon residential development.

TargetFairfield, NJ
Archived project image — Target in Fairfield
From our project archive View full size ↗

Traffic engineering, NJDOT approvals, county road improvements, and traffic signal design for retail development.

Metropolitan Plant ExchangeFort Lee, NJ
Archived project image — Metropolitan Plant Exchange
From our project archive View full size ↗

Site and traffic engineering, together with NJDOT access approvals.

Home Depot / Kohl’sMantua, NJ
Archived project image — Home Depot and Kohl’s in Mantua
From our project archive View full size ↗

Site and traffic engineering spanning roadway improvements, traffic signals, NJDOT approvals, wetlands approval, and stream encroachment approval.

Adult HousingMansfield, NJ
Site plan — Adult Housing in Mansfield
From our project archive View full size ↗

Site and traffic engineering with wetlands and NJDOT approvals for residential development.

PromenadeEdgewater, NJ
Archived project image — Promenade in Edgewater
From our project archive View full size ↗

Site engineering for the Promenade development on Edgewater’s Hudson River waterfront.

Berkeley VillageMantua, NJ
Archived project image — Berkeley Village
From our project archive View full size ↗

Site and traffic engineering, NJDEP permitting, and county permitting for Berkeley Village.

Clifton CommonsClifton, NJ
Archived project image — Clifton Commons
From our project archive View full size ↗

Traffic engineering and NJDOT approvals, including roadway improvements and a traffic signal.

Related Retail received the City of Clifton’s 2001 Commercial Beautification Award for Clifton Commons. Project recognition ↗

Route 3, Main Avenue & Allwood RoadClifton, NJ
Archived project image — Route 3, Main Avenue and Allwood Road
From our project archive View full size ↗

Traffic engineering, intersection and signal design, roadway widening, and signal coordination, with Passaic County and NJDOT approvals.

Mount Olive MewsMount Olive, NJ
Aerial view with site plan — Mount Olive Mews
From our project archive View full size ↗

A residential development featured in the firm’s past project portfolio.

Morris County’s 2016 housing report describes a community of 215 for-sale townhomes and 54 affordable rentals. County project profile ↗

Access Self StorageFranklin Lakes, NJ
Archived project image — Access Self Storage
From our project archive View full size ↗

A self-storage development featured in the firm’s past project portfolio.

New Brunswick Parking AuthorityNew Brunswick, NJ
Archived aerial image of New Brunswick Parking Authority project
From our project archive · View full size ↗

Site engineering, traffic engineering, and traffic signal design for the New Brunswick Parking Authority.

03 / Our firm

Engineering expertise.
Personal attention.

Three generations of engineering expertise, with deep roots in New Jersey and a hands-on approach to every project.

Simoff Engineering Associates works with developers, property owners, municipalities, and public agencies. The firm has been retained by more than 20 municipalities and counties for consulting services. Our work brings together traffic engineering, site planning, and transportation design, with an understanding of the regulations and coordination that shape a project.

Selected past clients

Home Depot · Target · Related Companies · Seton Hall University · Paper Mill Playhouse · Overlook Hospital

Explore our past client list

Retail & commercial

  • Home Depot
  • Walgreens
  • Columbia Bank
  • Target
  • Related Companies

Government

  • North Bergen
  • Allendale
  • Verona
  • Hamilton Township (Atlantic County)
  • Atlantic County Transportation Authority
  • Borough of Fort Lee
  • Borough of Paramus

Casinos

  • Tropicana
  • Resorts
  • Hilton
  • Trump

Institutions & other organizations

  • CBS Outdoor
  • Interstate Outdoor
  • Stockton College
  • Seton Hall University
  • Paper Mill Playhouse
  • J. Fletcher Creamer
  • Overlook Hospital
  • Mack-Cali
  • Pulte Homes
  • Selective Insurance Co.

Names reflect the organizations listed in our historical client portfolio.

Our founder

Abe Simoff

Abe Simoff founded the firm in the 1950s and established its roots in traffic and parking consulting. His career included leading the traffic departments of East Orange and Montclair and providing expert testimony in New Jersey Superior Court. He retired in 2007, leaving a family practice carried forward by his son Hal and grandson Ben.

Second generation

Hal Simoff, P.E., P.P.

Hal Simoff has built his career at his family’s firm, helping clients navigate the engineering and planning questions behind development. Under his leadership, Simoff Engineering Associates expanded its traffic engineering practice to include site planning, roadway improvements, and traffic signal design.

His experience spans developers, small businesses, major corporations, and government agencies. He combines an understanding of the permitting process with practical design recommendations, bringing personal attention to projects of different sizes and complexity.

Hal has provided expert testimony on behalf of government agencies and developers in courts in New Jersey and New York. He has also testified before the New Jersey Legislature in Trenton, bringing an engineering perspective to legislative discussions. His work draws on the connection between technical analysis, land-use requirements, and the way a site functions for the people who use it.

A graduate of the New Jersey Institute of Technology with a Bachelor of Science in Civil Engineering, Hal has also shared his experience as an adjunct professor at NJIT. His background includes service on his community’s planning board, adding a public-sector perspective to his consulting work.

Third generation

Ben Simoff, P.E.

Hal’s son Ben represents the third generation of the family’s engineering practice. A professional engineer and a 2013 graduate of Columbia University, his expertise includes traffic engineering, bicycle infrastructure, and traffic signal design.

04 / Start a conversation

What are you planning?

Tell us about your site, your project, or the question you’re working through. Let’s discuss how we can help.

hsimoff@simoff.com ↗973.966.9000 ↗Visit / write
2 Shunpike Road
Madison, NJ 07940