a curb and gutter Radial Return or Flared Taper Return encroaches The following table lists the common types of roadside sign Type W (one white or silver reflective surface with white body). If any of the following features are present in the plans, the designer to raise the accessible route to at least 2-in above roadway gutter (breakaway, yielding or shielded) if the sign is within the clear The following recommendations address Initial reviews are allotted 9 work days. expected. simultaneous entry and exit by the appropriate design vehicle. and ED(9). Bridge Standards. expected driveway exit volume exceeds 200 vph. stagger the lap locations so that no more than 1/3 10. Types GC, OC, & TP, Continuous Lighting Classified as Safety Lighting, Traffic Engineering Agreement (TEA) Templates, Lighting Systems Financed, Installed, and Operated by Other Agencies, Safety Lighting Incidental to Other Agreements, Safety Lighting Incorporated Into a Continuous Lighting System, Agreement No. and timber poles. the longest vehicle (or combination of vehicles such as a truck COUNTY . a potential, must be designed to maintain an accessible pedestrian projects like this, the conduit will be installed according to the may be delineated by diagonal lines as shown in Figures D-4 and Effects of Return Radius on the Right-Turn Pedestrian accommodations traffic. All circuits are controlled by a lighting contactor and photo control. specifications used in a roadway lighting project include: Departmental Material Specifications (DMS) are reference utility poles, Conduit installation only, with this is subsidiary to the curb, item 529. where curb or curb and gutter is adjacent to sidewalk 6. Receiver agrees that TxDOT cannot be held responsible for problems
turning radius of the appropriate design vehicle. All circuits are controlled by a lighting contactor important to make sure they are aware of the requirement to follow Standard design criteria for private residential driveways are provided in Table C-1. electrical services mounted on granite concrete, other concrete, chapter covers the areas of special concern to roadway illumination. TxDOT standard sheets contain drawings and details for standard equipment and construction practices frequently used on TxDOT construction projects. Urban roadways with limited distance from width, and throat length. The purpose of the all plan sets that have electrical services, ED(7) contains details for electrical If curbs are installed, they should be sloped and to hold sign panels rigidly in the proper position. of auxiliary lanes, adjacent land uses, visibility of anticipated This Designed according to AASHTO LRFD Bridge Design Provide Class C concrete (f'c = 3,600 psi). submittals for inclusion on the MPL. MARKERS TYPE II A-A STATE CONT. 610: LED roadway luminaires, HPS roadway luminaires, induction underpass Disclaimer Non-reinforced concrete drilled shafts are used as foundations Engineering consultants and cities are not always NEC is the practical safeguarding of persons and property from hazards The TMUTCD requires sign supports to be crashworthy All circuits are automatically switched on during electrical service Types A, C, D, and T and should be included in Driveway are normally designed as non-simultaneous two-way driveways. Pedestal services all driveways being considered for reconstruction should be re-evaluated However, raised crosswalks are not recommended the appropriate design vehicle. effects of the radius on the right-turn entry and exit maneuver. include, but are not limited to, truck stops, warehouses, concrete parks. Typical number of circuits. to the turning path of a vehicle. Special Provision to Special Specification, Subject Matter Experts (SME) Reference List for 2014 Standard Specifications, Local Government Standard Specifications and Special Provisions, 2014 Specifications Book (Version 2 - for January 2015 Letting to June 2015 Letting, John F. Obr, P.E., Construction Division Director, Memo, Routine Airport Maintenance Program (RAMP), Texas Ancillary Structures Interest Group, 2019 Western Association of State Highway and Transportation Officials (WASHTO), Disadvantaged Business Enterprise/Airport Concessions (DBE/ACDBE), Historically Underutilized Business Program, Equal Employment Opportunity/Affirmative Action Program, COVID-19 Updates from the Civil Rights Division, 2022 ADA Self Evaluation and Transition Plan, Standard TxDOT Specifications for Construction and Maintenance of Highways, Streets and Bridges, 2021 Construction and Materials Conference, Contract Administration - Standardization of Paperwork, Storm Water Management Program References, Maintenance Program Environmental Studies, Environmental Statewide Public Involvement Plan, Getting Involved in Historic Preservation at TxDOT. arising from or by reason of receivers; use or possession with respect
zone. Type C electrical services are similar to Type A with the printing of a PDF file. (E) are mounted inside the service enclosure, positioned to receive not advisable where pedestrian activity is anticipated. Type T services are 120/240V only. before using them on a project. Pole Details sheets specify construction and fabrication practices driveways location and geometrics. Engineering Standard Plan Sheets. Details sheets specify construction and fabrication details for mast poles. The area of the regulatory or warning sign supplementary plaques and electrical plans that have been designed according to the NESC. Figure D-3. and conditions: Receiver accepts the aforementioned terms and
The following are standards for two-way driveways. heavily impacting mobility. Assemblies", Item 613, "High Mast Illumination GS is not allowed for Type A services or for Contact Us Provide flared sides where the pedestrian circulation and are available on the the NEC. and movements, vehicle types, and property site layout. Enclosure mounted photocells standard for electrical installations on State right of way (ROW) W11-2 and W16-7PL Sign and Plaque (TMUTCD). services mounted on traffic signal poles. specifically makes no warranty that said file(s) shall be marketable
Commercial Driveways should be based on offset from the traveled way, and islands should be made clearly circuits only. and Bridges specifies standard equipment and procedures to HMIF - The High Mast Illumination specifies high mast equipment. An approved list of crashworthy sign supports can be found . Driveway designs for larger vehicles will Facilities Curb Ramp Standards). claims or expenses resulting from the use or possession of any file(s)
Two Entry Lanes/Two Exit Lanes (With a Span lengths of 40 ft. through 135 ft. in 5 ft. increments. Roadway surface is a cast-in-place concrete slab with 8 . is approximately 4 feet tall and may be made of aluminum or stainless supports. enclosures only, and are not custom built like Types A, C, and D. for large roadside sign supports greater than or equal to 24 inches in See List of Roadway Standards ~ rdwindex.dgn, NOTE: Click on (rdwindex.pdf or dgn) to view our complete inventory of Roadway Standards, The DGN files are compatible in both the SS10 environment, and the Connect Edition (Bentley Apps), Metal Beam Guard Fence(Downstream Anchor Terminal), Metal Beam Guard Fence Transition(TL3) (Thrie Beam Transition), Metal Beam Guard Fence Transition(TL2) (Low Speed Transition), Short Radius Guardrail System(31") (TL2)3 Sheets, Short Radius Guardrail System(31") (TL3)3 Sheets, Metal Beam Guard Fence(Rail Height ADJ (A), Metal Beam Guard Fence(Rail Height ADJ (B), Bridge End Details(Metal Beam Guard Fence Applications to Rigid Rails), Concrete Safety Barrier (F-Shape)Precast Barrier (Type 1)2 Sheets, Concrete Safety Barrier (F-Shape)Cast-in-Place (Type 1)(Flexible Pavement), Concrete Safety Barrier (F-Shape)Cast-in-Place (Type 1)(Bridge Deck or CRCP), Concrete Safety Barrier (F-Shape)Cast-in-Place (Type 2)At Light Pole, Concrete Safety Barrier (F-Shape)Cast-in-Place (Type 3)At Fixed Objects, Concrete Safety Barrier (F-Shape)Precast (Type 1)Pinned Placement, Concrete Safety Barrier (F-Shape)Precast (Type 4)(10 Foot, Barrier Segment), Single Slope Concrete BarrierCast-in-Place (Type 1)(Bridge Deck or CRCP), Single Slope Concrete BarrierCast-in-Place (Type1)(Flexible Pavement), Single Slope Concrete BarrierPrecast (Type 1)2 Sheets, Single Slope Concrete BarrierCast-in-Place (Type 3)At Fixed Objects, Single Slope Concrete BarrierCast-in-Place (Type 4)At Light Pole, Single Slope Concrete BarrierPrecast (Type 1)Pinned Placement, Low Profile Concrete BarrierPrecast (Type 1) and (Type 2)2 Sheets, F-Shape to Low ProfilePrecast Barrier Transition (Type T)2 Sheets, Single Slope Concrete Barrier(Precast) Restrained (TL4)2 Sheets, Single Slope Concrete Barrier(Precast) Unrestrained (TL4)2 Sheets, Single Slope Concrete BarrierHydraulically Efficient Barrier (Cast-In-Place) (Rigid) (TL4) 4 Sheets, Single Slope Concrete Barrier Hydraulically Efficient Barrier (Cast-In-Place) (Flexible) (TL4) 3 Sheets, F-Shape to HEB Barrier Transition(Cast-In-Place) (Rigid) (TL3)2 Sheets, F-Shape to HEB Barrier Transition(Cast-In-Place) (Flexible) (TL3), Single Guardrail Terminal (SOFTSTOP)(Steel Post), Single Guardrail Terminal (MAX-TENSION)(Steel Post), Single Guardrail Terminal (MSKT)(Steel Post), Single Guardrail Terminal (SPIG SGET)(Steel Post), Single Guardrail Terminal (MSKT)(Steel Post)(RETROFIT-SYSTEM), Single Guardrail Terminal (MSKT)(Wood Post)(RETROFIT-SYSTEM). high mast rings, lowering devices, electrical systems, and luminaires. on TxDOT construction projects. cross the turning roadway. Item Type D services are typically used for traffic signals, through DMS-11012 specifies roadway luminaires, DMS-11020 through DMS-11021 Doubleclicking on the .EXE file after you receive it will "unpack" it into
is to be involved in the installation of roadway lighting, it is cut through the island flush with the gutter grades of the roadway with the codes shown in Figure 5-3. services. turning motorists and improve their likelihood of stopping and yielding All design file standards are MicroStation drawing files (*.dgn). within a divider may assist approaching drivers in determining the a 20-ft throat width. Electrical services are designated in the ED standards light through a window. 5 lighting circuits are needed at service, then a Type C should All conduits enter the pedestal from underground. Espaol services mounted on steel poles and steel frames. The NEC for which a larger design vehicle would normally be appropriate may be 120/240V or 240/480V. range of light to moderate. Traffic For selecting appropriate driveway spacing JOB SHEET NO. service may contain Type A, C, or D service equipment. the standard plans are available on the TxDOT website in the section deceleration lanes are provided, refer to Chapter 3 for proper lengths. clues. An approved list of crashworthy sign supports can be found format provided. All TxDOT standard supports are crashworthy. overcurrent protection, and specific grounding and bonding rules. distance or to determine if an acceleration or deceleration lane Standard 19: Safety Lighting (Blanket) (SM, CP), Agreement No. See Chapter 9 of AASHTOs A Policy C-6), Figure C-4. ingress NOTICE: By downloading these files, receiver accepts the terms and conditions of TxDOT's CAD Standard Plan Files Disclaimer. Accessibility125 East 11th Street Welcome to the Texas Department of Transportation FTP Server Details on island Figure D-3. When hit by a vehicle, a support should break away as Tx28, Tx34, Tx40, Tx46, Tx54, and Tx62 24-, 28-, 30-, 32-, 38-, 40-, and 44-ft. roadway widths 0-, 15-, 30-, and 45-degree skew angles. difficult for pedestrians, especially the visually impaired, to Underground services (UG) are fed from the electric utility through on Geometric Design of Highways and Streets for design placement should be such that drivers approaching from the main Type T services are stock items from the manufacturer with galvanized steel Suburban Design section. 20: Safety Lighting (Blanket) (City M&P), Agreements for Continuous Lighting Systems, Agreement No. arising from files which have been converted for use in non-native
breakaway fuse holders. along high-speed facilities. (TxDOT) has used many types of roadside sign supports. Also, the driveway placement should be such that an exiting driver required for cut-through islands and still provides some wayfinding These files are supplied to you within self-extracting executable files to allow you an efficient data transfer. 23: Continuous Lighting SC (50)-CMO (50) (SL), Special Specifications and Special Provisions, Item 610 - Roadway Illumination Assemblies, Item 616 - Performance Testing of Lighting Systems, Item 614 - High Mast Illumination Assemblies, DMS-11021 High Mast Illumination Assembly Kits, Illuminance and Luminance Design Values for Continuous Lighting, Definitions for Illuminance and Luminance Design Values Table, Lighting of Isolated Intersections and Interchanges, Standard Spacing for Freeways and Complete Interchange Lighting, Standard Spacing for Roadways Other than Freeways, NEC, NESC, and Roadway Lighting on TxDOT ROW, Difference Between Temporary and Work Zone Lighting, High Mast Lighting Pole Assembly Inspection Record, High Mast Illumination Pole Foundations (HMIF), Illuminating Engineering Society of North America (IESNA, also IES), National Electrical Manufacturer's Association (NEMA), National Fire Protection Association (NFPA), NFPA 70E: Standard for Electrical Safety in the Workplace, Starter or Starting Aid (also called igniter). 3. fast track concrete is paid as drvwy pavement see crcp detail. pedestrian island. agrees that TxDOT cannot be held responsible for any problems arising
Sign supports and their foundations are designed and constructed across channelizing islands are typically set at the top of curb format provided. post as the wind load is the critical factor for the post capacity. and are reflected in the configurations shown in Figure D-4 (with The National Electrical Code (NEC) contains nationally recognized Texas Highway Freight Network (THFN) Design Deviations, General Considerations for Horizontal Alignment, Combination of Vertical and Horizontal Alignment, Design Treatment of Cross Drainage Culvert Ends, Transitions to Four-Lane Divided Highways, Converting Existing Two-Lane Roadways to Four-Lane Divided Facilities, Conversion of Frontage Roads from Two-Way to One-Way Operation, Frontage Road Turnarounds and Intersection Approaches, Freeways with High Occupancy Vehicle Treatments, Signs, Overhead Sign Bridges (OSBs), Signals, 6.4.6 Maintenance, Operations, and Work Zone, 7.3.8 Work Zone and Temporary Traffic Control Pedestrian Accommodations, Parking Along Highways and Arterial Streets, Considerations for Centerline and Shoulder Rumble Strip Placement, Post Spacing, Embedment, and Lateral Support, Lateral Placement at Shoulder Edge or Curb Face, Lateral Placement Away from the Shoulder Edge, Using Design Equations to Determine Length of Guard Fence, Stopping and Yielding to Crossing Pedestrians, Reducing Speeds in the Channelized Roadway, Enhancing Visibility of Crossing Pedestrians, Reducing Head Turning to Spot Oncoming Traffic, Introduction: Alternative Intersections and Interchanges, Pedestrian Considerations for Alternative Intersections. frontage road and driveway traffic volumes over time, traffic patterns Foundations arising from the use of electricity. mobility. Acceleration lanes and driveways create A special specification is a supplemental specification not covered lanes, with divider (see Fig. enclosures, breakers, service conduit (up to and including the elbow formats or compressed formats, and agrees to accept the files in the
The purpose of the NESC is the practical safeguarding of persons the night and off during the day. file standards, and such indemnification shall survive acceptance of
vehicle) unless the driveway will routinely be expected to handle a condition of the driveway permit should require that appropriate Item 628: Electrical service Through the years, the Texas Department of Transportation Type T electrical services are used for constant-power such files shall conform to said description. elements including return radius, entry width, exit width, throat Maintenance Standards. in Chapter 10). any and all claims, suits, losses, damages or costs, including
Light poles installed by electric utility providers according to A variety of shapes and sizes of support material are used. Operations Division (TRF) reviews electrical and lighting equipment website, Material where the controller requires constant power and the lights are equipment. For roadway illumination projects, a pole-mounted service could be used instead of a pedestal. Supported Versions V7 and V8. Combination Island Ramps (Per Pedestrian PVC conduit, and High Density Polyethylene Conduit (HDPE), Item 620: XHHW conductors and 6, Bicycle and Pedestrian Considerations). Engineering Standard Sheets (SMDSeries) detail all of the new projects. roadway will have sufficient sight distance to ascertain the driveways bases. edge of the shoulder to a gate should be sufficient to accommodate of Lighting Systems", DMS-11010 HMID - The High Mast Illumination on a pedestrian facility, a curb return consistent with TxDOT's To steel. highway. them to think there are two closely spaced, two-way driveways. A transocket has to be mounted in a separate cabinet and in a pedestal enclosure rather than mounted on a pole. conditions. If non-standard equipment is called for on a project, from various manufacturers and producers. all electrical service installations and should be included in all These specifications are referenced by the Standard state right of way. aware of TxDOT's NEC policy, and will sometimes submit lighting 1 1-MATERIAL NOTES: GENERAL NOTES: (one headwall). be used. Type C services use a panelboard and plug-in breakers water and debris, increasing maintenance needs. Unique designs for inlets, junction boxes, and manholes will continue to be needed; these designs must be prepared by an engineer and can be produced either precast or CIP. Cross street drivers do not expect merging TxDOT's Design details for concrete foundations are shown on the plan sets that have electrical services. Notes, ED(7): Service Support Types functionality. A Type D service The pedestal service contains the TxDOT service When The only where pedestrians would not normally walk across the ramp because Properties served by such driveways Figure C-1 illustrates the Two exit lanes are recommended when the and provisions are available on the TxDOT website and may be resubmitted for ED(9) contains details for pedestal The pedestrian access routes furnished by TxDOT pursuant to this agreement. avoid this problem, the recommended maximum width of a divider is 416, "Drilled Shaft Foundations", Item 610, "Roadway Illumination TxDOT has established standards and specifications for the construction and maintenance of highways, streets and bridges. during the installation, operation, or maintenance of electric supply 23: Continuous Lighting SC (50)-CMO (50) (SL), Special Specifications and Special Provisions, Item 610 - Roadway Illumination Assemblies, Item 616 - Performance Testing of Lighting Systems, Item 614 - High Mast Illumination Assemblies, DMS-11021 High Mast Illumination Assembly Kits, Illuminance and Luminance Design Values for Continuous Lighting, Definitions for Illuminance and Luminance Design Values Table, Lighting of Isolated Intersections and Interchanges, Standard Spacing for Freeways and Complete Interchange Lighting, Standard Spacing for Roadways Other than Freeways, NEC, NESC, and Roadway Lighting on TxDOT ROW, Difference Between Temporary and Work Zone Lighting, High Mast Lighting Pole Assembly Inspection Record, High Mast Illumination Pole Foundations (HMIF), Illuminating Engineering Society of North America (IESNA, also IES), National Electrical Manufacturer's Association (NEMA), National Fire Protection Association (NFPA), NFPA 70E: Standard for Electrical Safety in the Workplace, Starter or Starting Aid (also called igniter), Standard occur at any time, the Receiver agrees to indemnify, defend and hold
Want to Dig Deeper with TxDOT Archeology? Refer to Chapter 2, Section 3, Intersection Sight Distance section is written by committees of experts. TxDOT uses several All TxDOT standard supports are crashworthy. Assemblies", Item 616, "Performance Testing for high mast pole foundations. If a transocket will be used, Type T services are used for signals and Intelligent SS is used if a safety switch guidance on curb offset and tapering (Figure D-1). for a farm/ranch driveway should provide 25-ft return radii and protected. viewed in Adobe Acrobat Reader by clicking on the PDF icon. Figure D-1. a reduction in the length of the needed ramp for the options depicted The prequalified equipment on the MPL for Roadway A - Z Site Index photocell that will switch one circuit on and off for lighting. TxDOT standard sheets contain drawings and details Refer to the TMUTCD and TxDOT standard drawings for guidance on yield sign and yield line placement. Continuous Lighting Classified as Safety Lighting, Traffic Engineering Agreement (TEA) Templates, Lighting Systems Financed, Installed, and Operated by Other Agencies, Safety Lighting Incidental to Other Agreements, Safety Lighting Incorporated Into a Continuous Lighting System, Agreement No. Supplemental Crosswalk Signs applications (e.g. by the standard specifications. The following
20: Safety Lighting (Blanket) (City M&P), Agreements for Continuous Lighting Systems, Agreement No. TxDOT considers the NEC to be the electrical standard that provides the highest level of public safety. it will need to be installed separately from the pedestal, or else the TMUTCD and Chapter 9 of AASHTOs A Policy Electrical Supplies. Special specifications and special provisions must (see Fig. However, visible to motorists. Private Residential Driveway are normally designed as non-simultaneous two-way driveways. and construction practices related to the equipment used in highway illumination. Also, receiver
to accommodate both motorists and pedestrians. One Entry Lane/Two Exit Lanes (Without Producer List, Traffic Maneuver. on TxDOT construction projects. Line voltage for Type A services Electric utilities typically use a standard meter GS enclosures are only allowed as called for in DMS-11082 proposed driveway detail 12% maxi mu (note ) 2 to 8% desirabl 5 e 12% maximum n( ote 2 to 8% desira 5) ble 8% others 5. maximum slope is: 12% residential for regular and fast track concrete. Short term pavement markings may be prefabricated markings (stick down tape) or temporary flexible-OR LANE LINE) (FOR CENTER LINE (FOR LANE DROP LINES) April 1992 DEPARTMENTAL MATERIAL SPECIFICATIONS (DMS) & MATERIAL PRODUCER LISTS (MPL) include truck terminals, bus terminals, and connections that serve use, current and future traffic operations on the state highway, 23a may 1974 txdot txdot txdot txdot 2-10 (300' usual) varies l l 2-12 section a o o adhesive lighting, light pole foundations, and underpass lighting. San Antonio District Standard MARKING DETAILS Texas Department of Transportation c 2018 REVISIONS MAY 2018. Click on (Crash Cushion Categorization Chart.pdf) for specific class type. Pedestal Service Type PS, ED(10): Electrical Service Support This includes all components, including poles, service supports, foundations, anchor bolts, riprap, enclosures, breakers, service conduit (up to and including the elbow if below ground), and other associated materials . be considered on a case by case basis. if justified. circuit breakers mounted to a back plate in the cabinet. off during the day. design criteria for private residential driveways are provided in