Data Collection Sites
MiscellaneousRevised June 5, 2012
Equipment: Palm m130 pDA
Prepare The PDA
In the office
Turn the PDA on
Press the button at the top center of the device.
Check the Battery level
Look at the battery icon on the screen. If it is not at least 1/2 full, replace it in the charger and select another PDA.
Check the date and time
Tap on CLOCK.
Compare the information with the US OFFICIAL TIME website.
Tap SET DATE AND TIME. Make whatever corrections are necessary.
Return to the HOME screen.
In the field
Open HOV Suite
Use the stylus to tap HOV SUITE on the screen. The sign-in screen will appear.
Enter your initials, and the lane you will be counting, in the designated areas.
Tap on the line after OBSERVER.
Tap on abc (in the lower left corner of the box that appears) to access a keyboard or use the graffiti alphabet to write your initials.
Tap on 123 (in the lower right corner of the box that appears) to access a keyboard or use the graffiti alphabet to write the lane number that you will be counting.
From the pull down menu, select the corridor and site you are working at.
Tap CREATE SESSION.
The comment window will appear. Enter a weather comment from the list or make a custome comment. Tap DONE
The Data Collection screen will appear.
At the beginning of every session, make a comment about the weather and anything else that may affect traffic.
Tap on the balloon icon.
Select any standard comments from the menu list or make a custom comment.
Review this list of possible situations to comment on.
You may also make comments at any time during your session.
Standing at a 45 degree angle from the cars, enter the type of vehicle and the number of people in each vehicle, as they pass across your line of vision.
Use this vehicle chart to help you identify the types of vehicles.
Use this passenger diagram to help you understand where to get the best view of the passengers.
Use this keyboard diagram to help you understand how the keyboard corresponds to the vehicles and number of passengers.
Use this lane numbering diagram to help you understand how lanes are labelled for the purposes of this study.
Use this diagram of the schedule to help you understand your lane assigment.
After 30 minutes the session will close automatically. You must repeat the process of opening a new file each time this happens. By the end of your shift you should have five sessions collected. There will be time to collect one more short session after the five, 30 minute sessions. Collect as much data as you can, then close the file and turn off the PDA and head back to the office.
When you return to the office, upload the data files from your PDA to the computer, so they can be validated and analyzed. To upload files:
Place the PDA in the synchronizing base, connected to the computer.
Verify that a connection has been made; a beep will sound.
Push down gently on the PDA and hold in place to ensure a secure connection; continue to hold down slightly until uploading is complete (next step).
Press the HOT SYNC button on the base. An animated HOT SYNC icon will appear on the computer screen to indicate that files are uploading.
Remove the PDA from the base when it has finished uploading.
Leave the PDA turned on, with the HOME screen visible. Place it in a charging base on the rack.
Verify that a connection with the charger has been made; a beep will sound and the battery icon, at the top of the screen, will have a lightening graphic through it.
For a list of PDA problems and their solutions click here .
HOV Data Collection Program