Source: https://graphingparking.com/sources/
Timestamp: 2019-04-25 05:54:17+00:00

Document:
Note: The references below may not all be used in any graphic thus far. My intention is to make them as complete as possible so as to facilitate future use and use by others. Despite my best efforts, it is difficult to ensure that all special circumstances in each city’s code are documented.
BOLD indicates the section pertaining to the CBD or downtown.
reductions or exemptions: §10-2144(b)–Hospital hospitality house (5), §10-2072(b)–Family Childcar Home (3), §10-2072(B)–State law reference: North Carolina Building Code (6), §10-2051(d)(1)b.1, §10-2051(e)(1), §10-2055(e)(1), §10-2062(e)(1), §10-2081(c), Additional standards may be found in zone specific Streetscape and Parking Standards plans.
reductions or exemptions: §17.56.050.C, §17.120.100.B.5, §17.120.150, §17.128.030.B.1.c.v(B), §17.128.030.B.1.c.vi(B), §17.64.020.F.1, H, I, and J, §17.64.070, §17.64.080, Additional standards may be found within individual Planned Unit Development guidelines.
reductions, exemptions, and special uses: §131.0446(e) and (f), §141.0205(e), §141.0301(d), §141.0302(h), §141.0303(a)(1)(D), –(a)(2)(F), and –(b)(6), §141.0304(b), §141.0310(d)(1), §141.0312(i), §141.0313(h), §141.0406(i), §141.0412(b)(7), –(c)(5), and –(d)(3), §141.0503(a)(3) and –(b)(3), §141.0505(g), §141.0603(a)(4) and –(b)(5), §141.0604(b)(3), §141.0605(d), §141.0609(c), §141.0614(a), §141.0617(a), §141.0620(e)(6) and –(f)(7), §141.0621(o), §141.0623(a), §141.0624(b)(4), §143.0340(k) and (l), §143.0740(g), §152.0314(a)(5)(A), §152.0402, §153.0309(c), §154.0301(g)(1), §155.0251(b)(1), §155.0252(a), §156.0313, §157.0401, §159.0211(b)(3)(B), §1510.0304(e)(2), –(7)(c), –(8)(b), and –(9)(b), §1510.0401(f)(1), §1511.0401, §1512.0402(a), §1512.0404(a)(2), §1513.0403(c), §1516.0402(a), §142.0527, §142.0540, §142.0545, §142.0550, Transit reductions built into base tables.
of interest: PLANiTULSA and Tulsa Comprehensive Plan. Various small area plans have recommended local reductions in parking requirements, but I have not found evidence that these recommendations have yet be adopted into the code.
There’s currently only one graphic that takes into account downtown minimums, the one for offices. It accounts for the downtown exemption in the bar graph. You’ll also notice that the downtown exemption is bolded on this sources page.
This is fantastic work. Would you please consider studying parking at transit stations and rail stations?

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