TLCAT Group Services - US Participation

Number of holdings and number of unique items in TLCat as of 11/27/06.
Method for determining number of holdings: enter li:oclc symbol in Keyword Search of TLCat/WorldCat.
Libraries in Red = no significant holdings in TLCat

Transportation Libraries TLCat US Only - *36 US Participants
Total Holdings Rank # Unique TLCat Items Rank Library Name OCLC Symbol TLCat Lib # of Holdings % of Total # of Unique Holdings % Unique # of Unique TLCAT Holdings % TLCAT
11 27 Alaska DOT (will supercede ESO) AKDOT Y 19,114 2.21% 173 0.91% 99 0.52%
16 15 California DOT CDT Y 13,740 1.59% 755 5.49% 3,214 23.39%
18 13 Connecticut DOT RHT Y 12,957 1.50% 676 5.22% 4,322 33.36%
23 19 Illinois DOT IZA Y 8,865 1.02% 140 1.58% 1,844 20.80%
14 16 Iowa DOT UIG Y 13,971 1.61% 662 4.74% 3,094 22.15%
26 23 Kansas DOT KSDOT Y 4,660 0.54% 468 10.04% 963 20.67%
5 5 Los Angeles County MTA CRD Y 30,531 3.52% 8,107 26.55% 14,687 48.11%
37 37 Louisiana DOT ? Y 0 0.00% 0 0.00% 0 0.00%
9 4 Massachusetts DOT TLB Y 21,838 2.52% 1,222 5.60% 21,838 100.00%
13 8 Michigan DOT EEV Y 16,937 1.95% 4,424 26.12% 6,911 40.80%
12 11 Minnesota DOT MDT Y 18,281 2.11% 2,026 11.08% 4,833 26.44%
27 22 Missouri DOT MODOT Y 4,315 0.50% 75 1.74% 970 22.48%
19 20 Montana DOT DMY Y 12,545 1.45% 197 1.57% 1,389 11.07%
33 33 National Highway Traffic Safety Institute NHTSA Y 0 0.00% 0 0.00% 0 0.00%
31 31 National Transportation Library NTL NATTR Y 1 0.00% 1 100.00% 0 0.00%
21 25 New York DOT NY2 Y 10,805 1.25% 16 0.15% 650 6.02%
3 3 Northwestern University Transportation Library JCR Y 105,399 12.16% 23,982 22.75% 56,109 53.23%
8 12 Ohio DOT OHDOT Y 23,911 2.76% 616 2.58% 4,402 18.41%
28 24 Oregon DOT OTT Y 3,823 0.44% 39 1.02% 738 19.30%
32 32 Pennsylvania DOT P3T Y 1 0.00% 0 0.00% 0 0.00%
15 17 South Dakota DOT SDDOT Y 13,951 1.61% 779 5.58% 2,046 14.67%
34 34 Tennesee DOT TNTDT Y 0 0.00% 0 0.00% 0 0.00%
17 18 Transportation Research Board TRB TPO Y 13,600 1.57% 346 2.54% 1,906 14.01%
30 30 Univ of AK Fairbanks Geophysical Institute(see AKDOT) ESO Y 809 0.09% 10 1.24% 0 0.00%
1 1 Univ of California, Berkeley ITS HED Library CBT Y 237,436 27.40% 120,872 50.91% 159,193 67.05%
20 7 Univ of Michigan, Transportation Research Institute U2T Y 10,992 1.27% 7,152 65.07% 7,644 69.54%
35 35 Univ of Minnesota, CTS (Collect part of MinnDot) MNU Y 0 0.00% 0 0.00% 0 0.00%
36 36 Univ of Wisc Midwest Regional UTC WIRUT Y 0 0.00% 0 0.00% 0 0.00%
4 26 US Dept of Transportation, Volpe TSC TRS Y 34,870 4.02% 536 1.54% 541 1.55%
24 21 US DOT FHWA Technical Reference Center FHATR Y 5,790 0.67% 393 6.79% 1,312 22.66%
22 28 US FAA Aeronautical Center OUR Y 10,353 1.19% 40 0.39% 0 0.00%
25 14 US FAA CAMI OUT Y 5,472 0.63% 51 0.93% 4,133 75.53%
29 29 US FAA Tech Center FAA Y 3,766 0.43% 215 5.71% 0 0.00%
2 2 US Merchant Marine Academy VYM Y 136,779 15.78% 1,190 0.87% 126,115 92.20%
6 10 Virginia DOT/VTRC TDG Y 26,096 3.01% 491 1.88% 5,274 20.21%
10 9 Washington State DOT WDT Y 19,201 2.22% 2,158 11.24% 6,761 35.21%
7 6 Wisconsin DOT WOY Y 25,793 2.98% 2,692 10.44% 8,859 34.35%
    Totals   37 866,602   180,504   449847  

Courtesy National Transportation Library, December 2006

* 36 Paticipants after removing ESO