HDS

COMPLETE DATA

ACCURATE TO 2 MM

NON-INVASIVE

360o VIEW

FIELD FLEXIBILITY

CREW SAFETY

GE

WA

LT H

AM

ILT

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ASS

OC

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TECHNOLOGY DESIGNED FOR YOUR COMPLEX PROJECTS

Gewalt HamiltonAssociates &High-DefinitionSurveying

Gewalt Hamilton Associates is equipped to handle

your most complex project.

To support the professional engineering know-how

and creativity of our 60-person staff, we’ve added

high-definition surveying (HDS) to our range of

services. Our surveyors have the training, expertise

and experience that HDS requires.

Gewalt Hamilton is one of only a few engineering firms

to have HDS, which represents a paradigm shift in

surveying technology. In years to come, HDS will

replace traditional surveying methods for projects

simple and complex, large and small.

Our most important service is meeting our

clients’ needs.

“AT GEWALT HAMILTON

ASSOCIATES, OUR CORE

PHILOSOPHY IS TO PROVIDE

HIGH-QUALITY, TIMELY

SERVICE. HIGH-DEFINITION

SURVEYING ALIGNS

PERFECTLY WITH

THAT PHILOSOPHY.”

BOB HAMILTON, P.E.,PTOE

PRESIDENT

At GHA, we’re early-adopters of technical resources that will be indispensable in the future.

1G E WA LT H A M I LT O N A S S O C I AT E S

3G E WA LT H A M I LT O N A S S O C I AT E S

“ T h e b e a u t y o f H D S i s t h a t i t c a p t u r e s

c o m p l e t e s i t e d a t a t h e f i r s t t i m e o u t .

I f w e w a n t i n f o r m a t i o n a b o u t t h e s a m e

s i t e l a t e r o n , i t ’ s a l l t h e r e.”

STATE OF THE ART.

Gewalt Hamilton Associates has chosen the Leica

ScanStation high-definition surveying (HDS™)

equipment that combines four critical features:

Full f ield-of-view that captures 360o data from

ceilings, elevated pipes, tall facades, ornamented

surfaces, columns, towers and other difficult-to-

measure areas and structures.

Survey-grade, dual-axis compensation, which

provides freedom, flexibility, and safety in the field.

Survey-grade point accuracy for each

measurement, together with ultra-fine point

spacing at long range that takes optimal advantage of

scan targets and provides unsurpassed registration

accuracy and project control.

Practical range of approximately 300 meters for

90% reflectivity and 134 meters for 18% reflectivity;

HDS has a narrow beam and fine-scanning

capability that produce highly accurate data

from accessible points in the field.

The Leica ScanStation unites state-of-the-art

technology with point-and-shoot simplicity.

That’s the future of surveying, and we have it

at Gewalt Hamilton—now.HDS REMOVES

OBSTACLES

5Crew Safety

4Adaptable

MODERN BUILDINGCONSTRUCTION/RENOVATION

HISTORIC BUILDINGREPAIR ANDRENOVATION

SCHOOLS ANDHOSPITALSCONSTRUCTION/RENOVATION

AIRPORTRUNWAYS

RAILYARDS

ROADWAYSAND HIGHWAYS

BRIDGECONSTRUCTION/RENOVATION

WATERTREATMENT

PROCESSPIPING

3Field

Flexibility

2Non-invasive

8Complete

data

SEWAGETREATMENT

“HDS lets us survey a busy intersection without stopping traffic. We can analyze steeply sloped terrain from a safe,

remote location. We can work at night. HDS works as hard as we do.”

HDS technology brings unprecedented breadth, depth and scope to surveying. HDS is versatile and can handle the gamut of projects, from single buildings to highway systems.

And it’s f lexible in the field, providing optimal vantage points and crew safety.

G E WA LT H A M I LT O N A S S O C I AT E S

Architecture

Forensics/Accident Investigation

TransportationMunicipal/Civil 6

Speed,3,000 points per

second

73-D Accuracy

to 2mm

1Full-field-of-view, 360o

Gewalt Hamilton Associates is in its third decade of

providing services for civil site design, transportation

engineering, and surveying. Our portfolio includes

projects for municipalities and governments,

residential subdivisions, office parks and corporate

office sites, shopping malls, hospitals, senior care

facilities and public schools.

As our assignments have grown more complex and

sophisticated, so have our skills and capabilities.

We stay ahead of the curve in technology, with

HDS as a prime example.

On each project, our engineers, surveyors and com-

puter technicians work as a team with the architect,

contractors and others who are committed to

creating a successful result. HDS gives the team

the comprehensive information it needs.

“ H D S C R E A T E S A S U R V E Y T H A T ’ S

L I K E A 3 - D P H O T O G R A P H .

IT LETS US MEASURE EVERY PART

OF A STRUCTURE WITH 2-MM

PRECISION—LARGE FLAT PLANES . . .

DETAILED ORNAMENTATION . . .

EVEN THE INTERIORS OF BUILDINGS

AND INFRASTRUCTURE. HDS

MAKES EXTRAORDINARILY

DETAILED AND ACCURATE

MEASUREMENT PRACTICAL.”

MARIANO GARCIA,

FIELD ENGINEERING,TECHNICIAN II

2G E WA LT H A M I LT O N A S S O C I AT E S

4G E WA LT H A M I LT O N A S S O C I AT E S

Here’s how high-definition technology worked for the Illinois City of Des Plaines Capital Improvement Program project. 1

Capture

IN THE FIELD, A TRAINED GEWALT

HAMILTON SURVEYOR USES HDS TO

CAPTURE RAW DATA, CREATING A

POINT CLOUD. LATER, BACK AT THE

OFFICE, A CAD TECHNICIAN PUTS

THE POINT CLOUD TO USE.

IN COMPLEX SITUATIONS, SOME

STRUCTURES MAY BE OBSCURED BY

LAYERS OF DETAIL INVISIBLE TO TRADI-

TIONAL SURVEYING EQUIPMENT. HDS

BLANKETS A SITE CREATING A POINT

CLOUD THAT CAPTURES FEATURES

LARGE AND SMALL. AT THE CAD STA-

TION, THE TECHNICIAN CREATES

IMAGES OF STRUCTURES, EVEN THOSE

OBSCURED BY LAYERS OF DETAIL.

2Create

3Deliver

THE HDS POINT CLOUD IS

TRANSFORMED INTO A

CAD DRAWING TO MEET

OUR CLIENTS’ NEEDS.

Gewalt Hamilton Associates uses high-definition

surveying for the added value it brings to our

client services.

Complete and accurate. In most architectural

and engineering projects, surveying is the first

important step. HDS has a 360-degree field-of-view,

registers 3,000+ points per second, and produces

data that’s accurate within 2 mm. Projects begin

with solid, comprehensive information.

Non-invasive. Because HDS is non-invasive, it’s

a natural for the renovation of older buildings or

the restoration of historic landmarks. HDS is also

ideal for surveying intersections, the undersides

of highway overpasses and other areas that

are difficult to access.

Cost-effective. HDS cuts surveying time in the field and

gets complex projects off to a flying start. And HDS

lengthens the life of information. Once a scan is made,

it’s ready to use right away, or a year away. Our com-

puter keeps HDS data as long as it might be needed.

Cutting-edge. HDS technology is the future of

surveying. Gewalt Hamilton has it now, and our trained

staff have the expertise it requires.

Take a look at HDS. Once you see what it can do, you’ll

wonder how you did without it, particularly for complex

projects. We’ll arrange a demonstration whenever,

wherever it’s convenient for you.

Call our survey department at 847-478-9700 to find

out how HDS technology can benefit your project.

“IN TRADITIONAL SURVEYING, YOU PICK A SPOT IN THE FIELD, SET UP, RECORD, THEN REPEAT

THE PROCESS AT 50- OR 100-FOOT INTERVALS. WITH HDS, YOU PICK THE SPOT.

ONCE. FROM THAT VANTAGE POINT, HDS RECORDS THE DOTS AT 3,000 POINTS

PER SECOND. HDS CONNECTS THE DOTS AND CREATES A CLOUD OF DATA—

A POINT CLOUD.”

GEORGE SAAM, PLSSENIOR SURVEYOR

5G E WA LT H A M I LT O N A S S O C I AT E S

3G E WA LT H A M I LT O N A S S O C I AT E S

““ TT hh ee bb ee aa uu tt yy oo ff HH DD SS ii ss tt hh aa tt ii tt cc aa pp tt uu rr ee ss

cc oo mm pp ll ee tt ee ss ii tt ee dd aa tt aa tt hh ee ff ii rr ss tt tt ii mm ee oo uu tt ..

II ff ww ee ww aa nn tt ii nn ff oo rr mm aa tt ii oo nn aa bb oo uu tt tt hh ee ss aa mm ee

ss ii tt ee ll aa tt ee rr oo nn ,, ii tt ’’ ss aa ll ll tt hh ee rr ee..””

STATE OF THE ART.

Gewalt Hamilton Associates has chosen the Leica

ScanStation high-definition surveying (HDS™)

equipment that combines four critical features:

FFuull ll ff iieelldd--ooff--vviieeww that captures 360o data from

ceilings, elevated pipes, tall facades, ornamented

surfaces, columns, towers and other difficult-to-

measure areas and structures.

SSuurrvveeyy--ggrraaddee,, dduuaall--aaxxiiss ccoommppeennssaattiioonn,, which

provides freedom, flexibility, and safety in the field.

SSuurrvveeyy--ggrraaddee ppooiinntt aaccccuurraaccyy for each

measurement, together with ultra-fine point

spacing at long range that takes optimal advantage of

scan targets and provides unsurpassed registration

accuracy and project control.

PPrraaccttiiccaall rraannggee of approximately 300 meters for

90% reflectivity and 134 meters for 18% reflectivity;

HDS has a narrow beam and fine-scanning

capability that produce highly accurate data

from accessible points in the field.

The Leica ScanStation unites state-of-the-art

technology with point-and-shoot simplicity.

That’s the future of surveying, and we have it

at Gewalt Hamilton—now.HDS REMOVES

OBSTACLES

5Crew Safety

4Adaptable

MODERN BUILDINGCONSTRUCTION/RENOVATION

HISTORIC BUILDINGREPAIR ANDRENOVATION

SCHOOLS ANDHOSPITALSCONSTRUCTION/RENOVATION

AIRPORTRUNWAYS

RAILYARDS

ROADWAYSAND HIGHWAYS

BRIDGECONSTRUCTION/RENOVATION

WATERTREATMENT

PROCESSPIPING

3Field

Flexibility

2Non-invasive

8Complete

data

SEWAGETREATMENT

“HDS lets us survey a busy intersection without stopping traffic. We can analyze steeply sloped terrain from a safe,

remote location. We can work at night. HDS works as hard as we do.”

HHDDSS tteecchhnnoollooggyy bbrriinnggss uunnpprreecceeddeenntteedd bbrreeaaddtthh,, ddeepptthh aanndd ssccooppee ttoo ssuurrvveeyyiinngg.. HHDDSS iiss vveerrssaattii llee aanndd ccaann hhaannddllee tthhee ggaammuutt ooff pprroojjeeccttss,, ffrroomm ssiinnggllee bbuuiillddiinnggss ttoo hhiigghhwwaayy ssyysstteemmss..

AAnndd iitt’’ss ff lleexxiibbllee iinn tthhee ff iieelldd,, pprroovviiddiinngg ooppttiimmaall vvaannttaaggee ppooiinnttss aanndd ccrreeww ssaaffeettyy..

G E WA LT H A M I LT O N A S S O C I AT E S

Architecture

Forensics/Accident Investigation

TransportationMunicipal/Civil 6

Speed,3,000 points per

second

73-D Accuracy

to 2mm

1Full-field-of-view, 360o

Gewalt Hamilton Associates uses high-definition

surveying for the added value it brings to our

client services.

Complete and accurate. In most architectural

and engineering projects, surveying is the first

important step. HDS has a 360-degree field-of-view,

registers 3,000+ points per second, and produces

data that’s accurate within 2 mm. Projects begin

with solid, comprehensive information.

Non-invasive. Because HDS is non-invasive, it’s

a natural for the renovation of older buildings or

the restoration of historic landmarks. HDS is also

ideal for surveying intersections, the undersides

of highway overpasses and other areas that

are difficult to access.

Cost-effective. HDS cuts surveying time in the field and

gets complex projects off to a flying start. And HDS

lengthens the life of information. Once a scan is made,

it’s ready to use right away, or a year away. Our com-

puter keeps HDS data as long as it might be needed.

Cutting-edge. HDS technology is the future of

surveying. Gewalt Hamilton has it now, and our trained

staff have the expertise it requires.

Take a look at HDS. Once you see what it can do, you’ll

wonder how you did without it, particularly for complex

projects. We’ll arrange a demonstration whenever,

wherever it’s convenient for you.

Call our survey department at 847-478-9700 to find

out how HDS technology can benefit your project.

“IN TRADITIONAL SURVEYING, YOU PICK A SPOT IN THE FIELD, SET UP, RECORD, THEN REPEAT

THE PROCESS AT 50- OR 100-FOOT INTERVALS. WITH HDS, YOU PICK THE SPOT.

ONCE. FROM THAT VANTAGE POINT, HDS RECORDS THE DOTS AT 3,000 POINTS

PER SECOND. HDS CONNECTS THE DOTS AND CREATES A CLOUD OF DATA—

A POINT CLOUD.”

GEORGE SAAM, PLSSENIOR SURVEYOR

5G E WA LT H A M I LT O N A S S O C I AT E S

6G E WA LT H A M I LT O N A S S O C I AT E S

“EXISTING CONDITIONS ARE

NO OBSTACLE. HDS PROVIDES

BLANKET COVERAGE OF WHAT-

EVER WE’RE SURVEYING—

BUILDINGS, ROADWAYS,

MANUFACTURING PLANTS,

YOU NAME IT. THE BOTTOM

LINE? HDS GIVES OUR

CLIENTS INFORMATION THAT’S

MORE ACCURATE AND

COMPLETE FOR ABOUT

THE SAME COST AS A

CONVENTIONAL SURVEY.”

Gewalt Hamilton Associates, Inc., specializes

in site analysis, planning and design; transportation

engineering, including roadway design and

rehabilitation; public works operations; and

bidding and contract administration; our

public and private projects include:

o Building and site renovation

o Commercial developments

o Corporate offices and parks

o Hospitals

o Assisted living and continuing

care facilities

o Schools

o Municipal parks

o Residential subdivisions

o Municipal/governmental engineering

High-definit ion surveying (HDS) extends

Gewalt Hamilton’s expertise in topographic

and boundary surveys and GIS and

photogrammetric control surveys.

Call our survey department at

847-478-9700 to find out how

HDS technology can benefit

your project.

Gewalt Hamilton Associates is in its third decade of combining hands-on engineering expertise with state-of-the-art-technology. In every project, the client is a member of our team.

GEWALT HAMILTON

ASSOCIATES, INC.

850 Forest Edge Drive

Vernon Hills, IL 60061

Telephone 847-478-9700

Facsimile 847-478-9701

820 Lakeside Drive, Suite 5

Gurnee, IL 60031

Telephone 847-855-1100

Facsimile 847-855-1115

www.gha-engineers.com