SOW_Attachment_G_-_Draft_OCTA_Segment_Count_Template.pdf
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- Solicitation number
- 250415
- Issued by
- Orange County, California
About this file
This is a Scope of Work attachment document prepared by the Orange County Transportation Authority (OCTA) for the Traffic Data Collection Update project supporting the 2027 Congestion Management Program (CMP). The document establishes a segment count template and methodology for collecting traffic data across all 101 CMP intersections in Orange County, California. The project scope requires contractors to conduct physical traffic counts at designated intersections, update intersection physical attributes, and collect supplemental traffic data to support level-of-service (LOS) analysis. The template provides standardized protocols for data collection, including specifications for count duration, time periods, vehicle classification methods, and data recording procedures to ensure consistency and quality across all survey locations.
The segment count template defines the technical requirements and data collection standards that bidders must follow when submitting proposals and executing the traffic data collection work. The document outlines specific counting methodologies, time-of-day requirements, directional movement capture protocols, and data formatting standards to enable comparable results across the 101 intersections. This attachment serves as a binding specification document that establishes the minimum performance standards and deliverable requirements for all potential contractors, ensuring that collected data meets the technical needs of the CMP update and can be reliably integrated into the transportation planning analysis process.
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COUNT_TYPE DATE DURATION_HOURS BIN_MINS ROAD_NAME FROM_ROAD_NAME TO_ROAD_NAME LOCATION_LON LOCATION_LAT PROJECT_NAME VEH_ONLY 4/13/2015 24 15 Alicia Pkwy Marguerite Trabuco ‐117.6553526 33.62684943 Project P FY15 Alicia Pkwy
COUNT_DATE BEGIN_TIME BIKE_NB BIKE_SB BIKE_EB BIKE_WB COUNT_NB COUNT_SB COUNT_EB COUNT_WB CARS_NB CARS_SB CARS_EB CARS_WB HEAVY_NB HEAVY_SB HEAVY_EB HEAVY_WB class1_nb class2_nb class3_nb class4_nb class5_nb class6_nb 04/13/2015 0:00 18 14 04/13/2015 0:15 20 17 04/13/2015 0:30 21 7 04/13/2015 0:45 15 14 04/13/2015 1:00 14 7 04/13/2015 1:15 9 4 04/13/2015 1:30 10 8 04/13/2015 1:45 10 13 04/13/2015 2:00 10 7 04/13/2015 2:15 8 7 04/13/2015 2:30 9 9 04/13/2015 2:45 7 21 04/13/2015 3:00 12 11 04/13/2015 3:15 35 24 04/13/2015 3:30 26 22 04/13/2015 3:45 20 36 04/13/2015 4:00 64 40 04/13/2015 4:15 79 80 04/13/2015 4:30 48 76 04/13/2015 4:45 36 104 04/13/2015 5:00 60 118 04/13/2015 5:15 81 155 04/13/2015 5:30 70 173 04/13/2015 5:45 76 197 04/13/2015 6:00 122 283 04/13/2015 6:15 168 292 04/13/2015 6:30 142 311 04/13/2015 6:45 171 360 04/13/2015 7:00 199 376 04/13/2015 7:15 220 452 04/13/2015 7:30 223 376 04/13/2015 7:45 236 388 04/13/2015 8:00 220 389 04/13/2015 8:15 213 319 04/13/2015 8:30 195 290 04/13/2015 8:45 194 283 04/13/2015 9:00 161 275 04/13/2015 9:15 203 251 04/13/2015 9:30 177 251 04/13/2015 9:45 173 228 04/13/2015 10:00 173 243 04/13/2015 10:15 160 219 04/13/2015 10:30 159 203 04/13/2015 10:45 186 225 04/13/2015 11:00 180 192 04/13/2015 11:15 224 241 04/13/2015 11:30 204 247 04/13/2015 11:45 231 231 04/13/2015 12:00 254 223 04/13/2015 12:15 244 250 04/13/2015 12:30 230 243 04/13/2015 12:45 234 226 04/13/2015 13:00 270 241 04/13/2015 13:15 223 250 04/13/2015 13:30 238 235 04/13/2015 13:45 208 245 04/13/2015 14:00 229 290 04/13/2015 14:15 251 265 04/13/2015 14:30 267 234 04/13/2015 14:45 294 238 04/13/2015 15:00 312 275 04/13/2015 15:15 303 259 04/13/2015 15:30 343 244 04/13/2015 15:45 323 247 04/13/2015 16:00 341 209 04/13/2015 16:15 328 240 04/13/2015 16:30 337 211 04/13/2015 16:45 377 270 04/13/2015 17:00 389 250 04/13/2015 17:15 448 269 04/13/2015 17:30 370 216 04/13/2015 17:45 349 217 04/13/2015 18:00 339 193 04/13/2015 18:15 272 202 04/13/2015 18:30 268 183 class7_nb class8_nb class9_nb class10_nb class11_nb class12_nb class13_nb class1_sb class2_sb class3_sb class4_sb class5_sb class6_sb class7_sb class8_sb class9_sb class10_sb class11_sb class12_sb class13_sb class1_eb class2_eb class3_eb class4_eb class5_eb class6_eb class7_eb class8_eb class9_eb class10_eb class11_eb class12_eb class13_eb class1_wb class2_wb class3_wb class4_wb class5_wb class6_wb class7_wb class8_wb class9_wb class10_wb class11_wb class12_wb class13_wb
OCTA_SEGMENT_ID ROAD_NAME FROM_ROAD_NAME TO_ROAD_NAME
3973 ALICIA MARGUERITE
4502 ALICIA TRABUCO
picture will not be included just for illustration https://data-octagis.opendata.arcgis.com/datasets/9a97a3fda893402bbcf832b3c68b242a/explore
Term Description COUNT_TYPE Type of segment count (VEH_ONLY or VEH+CLASS) DATE Date the count was conducted with multiple days in multiple rows DURATION_HOURS Duration of segment count for date specified (up to 24 hours) BIN_MINS Data aggregate increments or bin size in minutes ROAD_NAME Name of road in which segment count is being collected FROM_ROAD_NAME Span of segment data with "from" being furthest west or south crossing TO_ROAD_NAME Span of segment data with "to" being furthest east or north crossing LOCATION_LON Longitude coordinate for count location LOCATION_LAT Latitude coordinate for count location PROJECT_NAME Project name COUNT_DATE Date (MM/DD/YYYY) the count was collected BEGIN_TIME Begin time of each data bin BIKE_NB Total bicycle count traveling on roadway northbound per data bin BIKE_SB Total bicycle count traveling on roadway southbound per data bin BIKE_EB Total bicycle count traveling on roadway eastbound per data bin BIKE_WB Total bicycle count traveling on roadway westbound per data bin COUNT_NB Total vehicle (cars and heavy vehicles) count traveling northbound per data bin COUNT_SB Total vehicle (cars and heavy vehicles) count traveling southbound per data bin COUNT_EB Total vehicle (cars and heavy vehicles) count traveling eastbound per data bin COUNT_WB Total vehicle (cars and heavy vehicles) count traveling westbound per data bin CARS_NB Total vehicle cars (FHWA Classes 1‐3 and designated vehicles from Class 5) count traveling northbound per data bin CARS_SB Total vehicle cars (FHWA Classes 1‐3 and designated vehicles from Class 5) count traveling southbound per data bin CARS_EB Total vehicle cars (FHWA Classes 1‐3 and designated vehicles from Class 5) count traveling eastbound per data bin CARS_WB Total vehicle cars (FHWA Classes 1‐3 and designated vehicles from Class 5) count traveling westbound per data bin HEAVY_NB Total heavy vehicle (FHWA Classes 4‐13 minus designated vehicles from Class 5) count traveling northbound per data bin HEAVY_SB Total heavy vehicle (FHWA Classes 4‐13 minus designated vehicles from Class 5) count traveling southbound per data bin HEAVY_EB Total heavy vehicle (FHWA Classes 4‐13 minus designated vehicles from Class 5) count traveling eastbound per data bin HEAVY_WB Total heavy vehicle (FHWA Classes 4‐13 minus designated vehicles from Class 5) count traveling westbound per data bin class#_nb Count per classification (per group table below) traveling northbound per data bin class#_sb Count per classification (per group table below) traveling southbound per data bin class#_eb Count per classification (per group table below) traveling eastbound per data bin class#_wb Count per classification (per group table below) traveling westbound per data bin OCTA_SEGMENT_ID MPAH ID for all links included in the span of the segment count ROAD_NAME Name of road in which segment count is being collected FROM_ROAD_NAME Name of road on west or south side of the associated MPAH link TO_ROAD_NAME Name of road on east or north side of the associated MPAH link
Class Group Class Definition Class Includes Number of Axles 1 Motorcycles Motorcycles 2 2 Passenger Cars All cars 2, 3, or 4
Cars with one‐axle trailers
Cars with two‐axle trailers 3 Other Two‐Axle Four‐Tire Single‐Unit Vehicles Pick‐ups and vans 2, 3, or 4
Pick‐ups and vans with one‐ and two‐ axle trailers 4 Buses Two‐ and three‐axle buses 2 or 3 5 Two‐Axle, Six‐Tire, Single‐Unit Trucks Two‐axle trucks 2 6 Three‐Axle Single‐Unit Trucks Three‐axle trucks 3
Three‐axle tractors without trailers 7 Four or More Axle Single‐Unit Trucks Four‐, five‐, six‐ and seven‐axle single‐unit trucks 4 or more 8 Four or Fewer Axle Single‐Trailer Trucks Two‐axle trucks pulling one‐ and two‐axle trailers 3 or 4
Two‐axle tractors pulling one‐ and two‐axle trailers
Three‐axle tractors pulling one‐axle trailers 9 Five‐Axle Single‐Trailer Trucks Two‐axle tractors pulling three‐axle trailers 5
Three‐axle tractors pulling two‐axle trailers
Three‐axle trucks pulling two‐axle trailers 10 Six or More Axle Single‐Trailer Trucks Multiple configurations 6 or more 11 Five or Fewer Axle Multi‐Trailer Trucks Multiple configurations 4 or 5 12 Six‐Axle Multi‐Trailer Trucks Multiple configurations 6 13 Seven or More Axle Multi‐Trailer Trucks Multiple configurations 7 or more
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