The National Academies Press

Currently Skimming:

Pages 248-279

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.

From page 248... ... 248 Appendix C: Research Approach Attachments Attachment C1: Intercept Survey Instrument Intercept Surveys  Will not be surveying in the rain  Estimates: 2 hours of surveying per site  Examples of approaches "Hi there! Do you have a minute to take a survey on crossing the street here? Read the entire page →
From page 249... ... 249 a. Very satisfied b. Read the entire page →
From page 250... ... 250 g. Other: _______ 8. Read the entire page →
From page 251... ... 251 c. Adults with kids d. Read the entire page →
From page 252... ... 252 2. Pedestrian delay (check all that apply) Read the entire page →
From page 253... ... 253 10. Gender a. Read the entire page →
From page 254... ... 254 g. Ran light 6. Read the entire page →
From page 255... ... 255 Figure C1-1. Turning Movement Diagram for Counting Motorists. Read the entire page →
From page 256... ... 256 a. All adults b. Read the entire page →
From page 257... ... 257 Table C1-2. Portland Surveyors. Read the entire page →
From page 258... ... 258 Site # Site Date Time Surveyor 1 Surveyor 2 25 NE 33rd Ave. and NE Emerson St. Read the entire page →
From page 259... ... 259 HD Sites Video Specifications Pickup: 1/4" (2,800,000 pixels) progressive CMOS Lens: F1.9 to 3.2, 2.9 mm to 58 mm, 20:1 power zoom lens Filter diameter: 30.5 mm HD Sites Video Settings Signal format: 1080i/60 Recording/Playback: MPEG-4 AVC/H.264 Recording in "EP" mode (all variable bit rate) Read the entire page →
From page 260... ... 260 To begin to code Quality Counts videos: ● Determine if the site has a median island. Two-way left-turn lanes do not count as medians. Read the entire page →
From page 261... ... 261 b) PT2 Time when he/she stepped off the curb into the roadway (may be same as above) Read the entire page →
From page 262... ... 262 ● Negative gesture to drivers ● Used wheelchair/walker ● Used scooter ● None of the above 20. Interaction with cyclist (for a group, choose all that apply to anyone in the group) Read the entire page →
From page 263... ... 263 Table C2-1. Timing for Unsignalized Crosswalks with Medians. Read the entire page →
From page 264... ... 264 Table C2-2. Timing for Unsignalized Crosswalks with No Median. Read the entire page →
From page 265... ... 265 9. Did the pedestrian cross the intersection in a two-stage diagonal crossing maneuver? Read the entire page →
From page 266... ... 266 1. In the case of LPI, code this behavior when ped arrives on red and waits for walk signal iv. Read the entire page →
From page 267... ... 267 23. Interaction with Right turn from Minor to Major* Read the entire page →
From page 268... ... 268 The results of the analysis revealed that, in general. MV traffic volumes and pedestrian crossing time were coded with acceptable consistency because both were less than 15% average absolute percent difference (MAPE) Read the entire page →
From page 269... ... 269 Due to the poor interrater agreement for some of the variables, results for these variables are either not reported or are noted as less reliable. Methods To test the consistency of video coding, interrater reliability tests were performed using statistical tests to compare the coding of the same pedestrians between coders. Read the entire page →
From page 270... ... 270 qj = 1 − pj. If coders are in complete agreement, κ = 1. Read the entire page →
From page 271... ... 271 Category Chapel Hill Portland κ Interpreta tion # of Responses κ Interpret ation # of Responses Gender 0.74 Fair 92 0.53 Fair 60 Did ped activate the push-button? 0.72 Fair 92 0.38 Poor 84 Eye Gaze 1 (looked for traffic before crossing) Read the entire page →
From page 272... ... 272 Category Chapel Hill Portland κ Interpreta tion # of Responses κ Interpret ation # of Responses Motorist did not yield * Read the entire page →
From page 273... ... 273 "talking to others present" was not even an option for coders (since it was already coded under distractions) and none of the other behaviors were coded; therefore, comparisons could not be made for pedestrian behavior. Read the entire page →
From page 274... ... 274 Attachment C3: Naturalistic Walking Study Naturalistic Walking Study Recruitment Flyer Researchers from the UNC's are conducting a study about the experience of walking in the Chapel Hill– Carrboro area. Being in a research study is completely voluntary. Read the entire page →
From page 275... ... 275 Materials used in the Naturalistic Walking Study SpyTec GPS device used in the study Empatica E4 biosensing wristband used in the study Read the entire page →
From page 276... ... 276 Intake Questionnaire Today's date: 1. First name: 2. Read the entire page →
From page 277... ... 277 Attachment C4: Pedestrian Network LOS The following presents text on pedestrian network LOS. This text is designed to be inserted into the Planning and Preliminary Engineering Applications Guide to the HCM (NCHRP Report 825) Read the entire page →
From page 278... ... 278 Exhibits 116A and 116B are used to determine a facility's PLTS. The higher (i.e., worse) Read the entire page →
From page 279... ... 279 Step 3. Evaluate Pedestrian Network Completeness The study area pedestrian network can be mapped using color coding for different link and node PLTS values. Read the entire page →

From page 248...

... 248 Appendix C: Research Approach Attachments Attachment C1: Intercept Survey Instrument Intercept Surveys  Will not be surveying in the rain  Estimates: 2 hours of surveying per site  Examples of approaches "Hi there! Do you have a minute to take a survey on crossing the street here?