Roadway Design
Glossary

Roadway Design Glossary

Abbreviation and Acronym	Name	Work Unit
AASHTO	American Association of State Highway and Transportation Officials	Roadway Design References
ABAND	Abandoned	Right of Way Plans
ABC	Aggregate Base Course	Pavement Schedule
AC	Acre	Right of Way Plans
ACBC	Asphalt Concrete Base Course	Pavement Schedule
ACIC	Asphalt Concrete Intermediate Course	Pavement Schedule
ACS	Auxiliary Coordinate System	Microstation Attribute
ACSC	Asphalt Concrete Surface Course	Pavement Schedule
AD	Arterial Design Side Slope	Criteria
ADT	Average Daily Traffic	Traffic Diagram
AEC	Areas of Enviromental Concern	Coastal Permits
AH	Ahead	Roadway Plans
AP or APPR	Approach	Roadway Plans
ASPH	Asphalt	Roadway Plans
AST	Asphalt Surface Treatment	Pavement Schedule
AT-1	Anchor Terminal	Roadway Plans
AZ	Azimuth	Angle System
B	Bridge Projects (B-1234)	TIP Projects
BEG	Begin	Roadway Plans
BIC	Buried in Cut	Roadway Plans
BK	Back	Roadway Plans
BL	Base Line	Base Mapping
BM	Bench Mark	Roadway Profiles
BRG	Bridge	Roadway Plans
BS	Backsight	Geodetic Survey
BST	Bituminous Surface Treatment	Pavement Schedule
BW	Barrier Wall or Barbed Wire (Fence)	Roadway Plans
C	Congestion Mitigation Projects (C-1234)	TIP Projects
CA	Control of Access	Right of Way Plans
CADD	Computer Aided Design and Drafting	Software
CAMA	Coastal Area Management Act	Coastal Area Permits
CAT-1	Cable Anchor Terminal	Roadway Plans
CB	Catch Basin	Hydraulic Plans
CBD	Central Business District	Urban Thoroughfare Plans
CC	Center of Curve or Compund Curve	COGO
CCC or 3C	Continuing Comprehensive Cooperatively	Federal Aid Criteria
CCFR	Curb Cut for Future Wheelchair Ramp	Roadway Plans
CCPCUA	Central Coastal Plain Capacity Use Area	Enviromental Permits
CD	Collector Distributor (Road)	Roadway Plans
CE	Categorical Exclusion	Project Studied Document
CG or C&G	Curb and Gutter	Roadway Plans
CGIA	Center for Geographic Information and Analysis	GIS Correspondent
CL	Center Line or Chain Linked (Fence)	Roadway Plans
CMB	Concrete Median Barrier	Roadway Plans
CMP	Corrugated Metal Pipe	Hydraulic Plans
COGO	Coordinate Geometry	Geopak Software
CONC	Concrete	Roadway Plans
CONSTR	Construction	Roadway Plans
CP	Control Point or Cross Pipe	Roadway X-Sections
CRI	Criteria	Roadway X-Sections
CS	Curve to Spiral	Roadway Plans
CSP	Corrugated Steel Pipe	Hydraulic Plans
CT	Center	Roadway Plans
CTBC	Cement Treated Base Course	Pavement Schedule
D	Directional Movement Factor or Degree of Curve	Capacity Analysis
DDE	Drainage Ditch Excavation	Earthwork Computation
DENR	Department of Enviromental and Natural Resources	Project Correspondent
DHV	Design Hourly Volume	Capacity Analysis
DI	Drop Inlet	Hydraulic Plans
DMD	Double Meridian Distance	Survey Computations
DMV	Division of Motor Vehicles	Project Correspondents
DOD	(US) Department of Defense	GPS & Geodetic Survey
DOH	Division of Highways	Project Correspondents
DOT	Department of Transportion	Project Correspondents
DTCD	Drop Type Concrete Drive	Roadway Plans
DTM	Digital Terrain Modeling	Geodetic Survey
DWQ	Division of Water Quality	NCDENR
E	East or Eastern or Easting \| English \| Enhancement Project Roadside (E-1234)	Roadway Plans
EA	Enviromental Assessment (Draft and Final)	Project Studied Document
EBL	East Bound Lane	Roadway Plans
EDM	Electronic Distance Measurement	Survey Procedures
EIS	Enviromental Impact Statement (Draft and Final)	Project Studied Document
EMB	Embankment	Earthwork Computation
El	Elevation	Roadway Profiles
END	Ending	Roadway Plans
EOP	Edge of Pavement	Roadway Plans
EOT	Edge of Travel	Roadway Plans
EPA	Enviromental Protection Agency	Project Correspondent
EQN	Equation	COGO
ESAL	Equivalent Single Axial Load	Pavement Management
EST	Estimated	Roadway Estimates
EW	Earthwork	Roadway X-Sections
EXC	Excavation	Earthwork Computation
EXIST	Existing	Base Mapping
F	Ferry Projects (F-1234)	TIP Projects
FD	Freeway Design ( Side Slope)	Criteria
FEMA	Federal Emergency Management Agency	Project Correspondent
FES	Flared End Section	Hydraulic Plans
FDPS	Full Depth Paved Shoulder	Roadway Typicals
FF	Filter Fabric	Hydraulic Pay Items
FFS	Free Flow Speed	Capacity Analysis
FMIS	Fiscal Management Information System	Project Federal Funding
FHWA	Federal Highway Administration	Project Correspondent
FONSI	Finding Of No Significant Impact	EA Result Documentation
FS	Foresight	Geodetic Survey
Ft	Foot or Feet	Roadway Plans
GDI	Grated Drop Inlet	Hydraulic Plans
GI	Grated Inlet	Hydraulic Plans
GIS	Geographic Information Systems (Unit)	County Maps
GP	Grade Point	Roadway Typicals
GPS	Global Positioning System	Geodetic Survey
GR	Guardrail or Gravel (Road)	Roadway Plans
GS	General Statute	NC Law
GRAU	Guardrail Anchor Unit	Roadway Plans
HCM	Highway Capacity Manual	Capacity Analysis
HCS	Highway Capacity Software	Capacity Analysis
HDPE	High Density Polyethylene (Pipe)	Hydraulic Plans
HI	Height of Instrument	Geodetic Survey
HPMS	Highway Performance Monitoring System	GIS Data System
HT	Height	Roadway Plans
HOV	High Occupancy Vehicle	Congestion Management
HYD	Hydraulic	Hydraulic Files
I	Interstate or Interstate Projects (I-1234)	TIP Projects
IMAP	Incident Management Assistance Patrol	Traffic Control
IN	Inch	Plotting
ISTEA	Intermodal Surface Transportation Efficiency Act	National Statue
JB	Junction Box	Hydraulic Plans
JCT	Junction	Highway Signs
K	Rest Area Projects (K-1234)	TIP Projects
KM	Kilometer	Title Sheets
LC	Long Chord	Curve Composition
LEDPA	Least Enviromentally Damaging Practicable Alternative	NEPA Merger Process
LD	Local Design (Side Slope)	Criteria
L off	Length of Runoff	Superelevation Data
L out	Length of Tangent Runout	Superelevation Data
LOC	Location and Surveys \| Limits of Construction	Correspondence
LOS	Level of Service	Capacity Analysis
LP	Loop (-LPA-, -LPD-)	Roadway Plans
LT	Left	Roadway Plans
M	Meter or Metric or Median Anchor Unit (M-350)	Roadway Plans
MAT	Material	Roadway Plans
MBT	Modified Bulb Tee	Prestressed Concrete Girder
MCI	Monolithic Concrete Island	Roadway Plans
MD	Middle	Roadway Plans
MDI	Median Drop Inlet \| also see GDI	Hydraulic Plans
MDNDS	Median Ditch Slope	Criteria
MDS	Masonry Drainage Structure	Hydraulic Plans
MED	Median	Roadway Plans
MH	Man Hole	Hydraulic Plans
MI	Mile	Roadway Title Sheet
MOD	Modified	Roadway Plans
MPH	Mile Per Hour	Roadway Title Sheet
MPO or MPOs	Metropolitan Planning Organizations	Project Correspondent
MRG	Maximum Relative Gradient	Geodetic Survey
MSL	Mean Sea Level	Geodetic Survey
N	North or Northern or Northing	Roadway Plans
NAAQS	National Ambient Air Quality Standards	EPA Standards
NAD	North American Datum (+ MSL datum year: NAD 83)	North Arrows/Datum Description
NAVD	North American Vertical Datum	Geodetic Survey
NB(L)	North Bound (Lane)	Roadway Plans
NC	Normal Crown or North Carolina (Route Number)	Superelevation Data
NCAC	North Carolina Administrative Code	NCDOT Activity and Obligation
NCDENR	North Carolina Department of Enviroment and National Resources	Project Correspondent
NCDOT	North Carolina Department of Transportation	Roadway Plans
NCEES	National Council of Examiners for Engineering and Surveying	Professional License
NDI	Narrow Slot Drop Inlet	Hydraulic Plans
NEPA	National Enviromental Policy Act	Enviromental Permits
NEU	Natural Enviroment Unit - see also ONE	Enviromental Permits
NHPN	National Highway Planning Network	GIS Data System
NHS	National Highway System	Roadway Plans
NTS	Not to Scale	Title Sheets
NTSB	National Transportation Safety Board	Materials and Testings
O&D	Origin and Destination (Survey)	Capacity Analysis
OGAFC	Open Graded Asphalt Friction Course	Pavement Schedule
ONE	Office of Natural Enviroment - see also NEU	Enviromental Permits
P	Passenger Rail Projects (P-1234) or Passenger (Car)	TIP Projects
PADL	Permeable Asphalt Drainage Layer	Pavement Schedule
PCBB	Prestressed Concrete Box Beam (Unit)	Structure Plans
PDE	Permanent Drainage Easement	Right of Way Plans
PDEA or PD&EA	Project Development & Environmental Analysis (Unit)	Project Studied Document
PDPS	Partial Depth Paved Shoulder	Roadway Typicals
PE	Professional Engineer or Project Engineer	Project Managers and Designers
PEF	Private Engineering Firms	Project Correspondents
PGL	Profile Grade Line	Superelevation Data
PHF	Peak Hour Factor	Capacity Analysis
PI	Pont of Intersection	Roadway Plans
PINC	Point of Intersection No Curve	Roadway Plans
PIS	Point of Intersection for Spirals	Roadway Plans
PLS	Professional Land Surveyor	Project Correspondents
POC	Point on Curve	Roadway Plans
POT	Point on Tangent	Roadway Plans
PRO or PFL	Profile	Roadway Profile
PRC	Point of Reverse Curve	Roadway Plans
PRS or RS	Point of Reverse Spiral	Roadway Plans
PROP	Proposed	Roadway Plans
PS	Paved Shoulder or Pavement Schedule (Cells)	Roadway Typicals
PSH	Plan Sheet	Roadway Plans
PT	Point of Tangency or Point	Roadway Plans
PUE	Permanent Utility Easement	Right of Way Plans
PVC	Point on Vertical Curve	Roadway Profile
PVI	Point of Vertical Intersection	Roadway Profile
PVMT	Pavement	Roadway Plans
PVMT SCHL	Pavement Schedule	Pavement Schedule
PVT	Point of Vertical Tangency	Roadway Profile
R	Rural Projects (R-1234) or Radius	TIP Projects
RC	Remove Adverse Crown, Reverse Crown, or Reverse Curve	Roadway Typicals
RCBC	Reinforced Concrete Box Culvert	Roadway Plans
RCP	Reinforced Concrete Pipe	Hydraulic Plans
RDM	Roadway Design Manual	Design Criteria Worksheet
REINF	Reinforced	Roadway Plans
REM	Remove	Roadway Plans
REPL	Replace	Roadway Plans
RESURF	Resurface	Roadway Profiles
RET	Retain	Roadway Plans
ROD	Record of Decision	EIS Results Documentation
ROW	Right of Way	Right of Way Plans
RP	Ramp (-RPA-, -RPD-)	Roadway Plans
RPO	Rural Planning Organizations	Planning Correspondents
RR	Railroad or Rip Rap or Rub Rail	Roadway Plans
RRR or 3R	Resurfacing, Restoration, and Rehabilitation	Type of Roadway Project
RS	Reverse Spiral	Roadway Plans
RT	Right	Roadway Plans
RTCD	Radius Type Concrete Drive	Roadway Plans
S	South or Southern or Southing \| Scenic Beautification Projects (S-1234)	Roadway Plans
SABC	Sand Asphalt Base Course	Pavement Schedule
SASC	Sand Asphalt Surface Course	Pavement Schedule
SAU	Structure Anchor Unit	Roadway Plans
SBG	Shoulder Berm Gutter	Roadway Plans
SB (L)	South Bound (Lane)	Roadway Plans
SCS	Spiral Curve Spiral	COGO
SE	Super Elevation (Rate)	Roadway Plans
SEPA	State Environmental Policy Act	Project Permits
SI	Systeme International (French) \| Hazard Elimination Projects (SI-1234)	Pavement Schedule
SP	Shear Point or Super Pave	Pavement Schedule
SPD	Shear Point Diagram	Roadway Plans
SPDI	Single Point Diamond Interchange	Interchange Design
SPI	Spiral	Roadway Plans
SPUI	Single Point Urban Interchange	Interchange Design
SR	Service Road or Secondary Road	Roadway Plans
SS	Slope Stakes	Roadway Plans
ST	Spiral to Tangent (Point)	Roadway Plans
STA	Station	Roadway Plans
STBC	Soil Type Base Course	Pavement Schedule
STD	Standard	Drawing Standards
STIP	Statewide Transportation Improvement Program	Board Approval Process
STR	Structure	Roadway Plans
SREC	Struture Recomendations	Struture Recomendations
SUE	Subsurface Utility Engineering	Symbology Sheet
SUT	Single Unit Truck	Capacity Analysis
SYB	Symbol	Symbology Sheet
T	Tangent or Truck Volume (ADT)	Title Sheet
TB	Traffic Bearing	Hydraulic Plans
TBDI	Traffic Bearing Drop Inlet	Hydraulic Plans
TBJB	Traffic Bearing Juction Box	Hydraulic Plans
TBM	Temporary Bench Mark	Geodetic Survey
TCE	Temporary Construction Easement	Right of Way Plans
TDE	Temporary Drainage Easement	Right of Way Plans
TDI	Tight Diamond Interchange	Interchange Design
TEMP	Temporary	Roadway Plans
TERM	Terminator	Roadway Cells
TES	Terminal End Section	Roadway Plans
TIN	Triangulated Irregular Network	Geopak Resource
TIP	Transportation Improvement Program	Roadway Plans
TP	Turning Point	Geodetic Survey
TR	Trailing	Roadway Plans
TS	Tangent to Spiral (Point) or Typical Section	Roadway Plans
TSH	Title Sheet	Roadway Plans
TT	Turning Template	Roadway Cells
TTST	Tractor Trailor Semi Truck	Title Sheet
TYP	Typical	Roadway Plans
V	(Velocity) Design Speed	Title Sheets
W	West or Western or Westing \| Hazard Elimination Projects (W-1234)	Roadway Plans
WB	Wheel Base	AutoTurn Analysis
WBL	West Bound Lane	Roadway Plans
WCC	Wheelchair Ramp Curb Cut	Roadway Plans
WCR	Wheelchair Ramp	Roadway Plans
WLB	Wetland Limit Boundary	Wetland Correspondents
WW	Woven Wire (Fence) or Wing Wall	Roadway Plans
XS or XSECT	Cross Section	Roadway X-Section
Y	Passenger Rail Projects (Y-1234)	TIP Projects
Z	Passenger Rail Projects (Z-1234)	TIP Projects

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Roadway Design Glossary Roadway Design Glossary

Roadway Design
Glossary

Roadway Design Glossary