Attribute field |
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The attribute field is key to defining one-way restrictions etc. It is an integer in the range 0 to 65535.
If you don't want to set it up properly at first, just create a field with all 0's and use that as attribute field.
•Road class, 0-31 (5 bits) These have no predefined meaning, but the speed for each class can be defined through speed files.
•Hierarchy, 1-5, (3 bits, 32-64-128, bit 5-7) Not used in RW Studio, but can be reported in statistics.
•No-drive through, true/false (1 bit, 256, bit 8) This can be used to define areas, where you are not allowed to drive through to get to the target.
•One-way, To-From direction is not allowed, (1 bit, 512, bit 9) Similar to "FT" in some datasets prepared for Network Analyst.
•One-way, From-To direction is not allowed, (1 bit, 1024, bit 10) Similar to "TF" in some datasets prepared for Network Analyst.
If both bit 9 and 10 are set, the link is closed for driving. Similar to "N" in some datasets prepared for Network Analyst.
•Roundabout, true/false (1 bit, 2048, bit 11) Can be used in creating driving directions.
•Non-driving link, such as a ferry or car-train, true/false (1 bit, 4096, bit 12) Can be used in creating driving directions.
•True if not allowed to make U-turns at the From-end of the link. (1 bit, 8192, bit 13)
•True if not allowed to make U-turns at the To-end of the link. (1 bit, 16384, bit 14)
•SkipInSearch, true/false (1 bit, 32768, bit 15) Set it true for links, where you don't want routes to start or end.
An example:
A motorway of class 1, which can only be traveled in the direction of digitization and should be skipped in searches: 1 + 512 + 32768 = 33281.
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