I couldn’t find street names for every point where you did not have them, but I found quite a few. In a couple of cases, I have suggested moving the waypoint to a nearby intersection for which I do have a name. So, for each highway, here’s your list annotated with new names where possible, followed by my take on what the waypoints for each road should be. The waypoints include every AR (national route) and D (district route) intersection. Except in one case (Benque Viejo del Carmen which is a key community), I have only included F (feeder road) or no-number road intersections where you had listed them. Waypoints are listed in the direction of increasing mileposts. Use my suggestions or not at your discretion. The road numbers I have given are how these roads are designated by the highway agency. The road numbers are NOT signed in the field.
George Price Highway (AR1)
StMat
http://www.openstreetmap.org/?lat=17.277190&lon=-88.634045I have no name for this intersection. I suggest moving the waypoint to an adjacent intersection called St. Matthew’s Farm Rd (F8009) at 17.277191,-88.660202
8MileCom
http://www.openstreetmap.org/?lat=17.469066&lon=-88.293254Ferguson Bank Rd (F2000)
Recommended Sequence of Waypoints for George Price Highway (AR1):
1. Beginning of route/Belize City
2. Ferguson Bank Rd (F2000) at 17.469066&lon=-88.293254
3. Burrell Boom Rd (D200) at 17.46167, -88.39239
4. Manatee Rd/Coastal Rd (AR5) at 17.34255, -88.55494
5. St Matthews Farm Rd at 17.277191,-88.660202
6. Hummingbird Hwy/Belmopan (AR3) at 17.2613, -88.7876
7. Iguana Creek Bridge Rd (D907) at 17.2253, -88.9223
8. Georgeville Rd (D903) at 17.1923, -88.9823
9. Loma Luz Boulevard/Santa Elena at 17.16697, -89.05405
10. Benque Viejo Road/San Ignacio at 17.15067, -89.07492
11. Wyatt Street/Benque Viejo del Carmen at 17.07179, -89.13812
12. Belize/Guatemala border
Philip Goldson Hwy (AR2)
BobEil
http://www.openstreetmap.org/?lat=17.711703&lon=-88.448501Washing Tree Rd (F250)
CroTreeAcc
http://www.openstreetmap.org/?lat=17.774935&lon=-88.479915Crooked Tree Rd (D253)
SanLuis
http://www.openstreetmap.org/?lat=18.174947&lon=-88.577751San Luis Rd #1 (F3004)
BueVis
http://www.openstreetmap.org/?lat=18.235934&lon=-88.526124Libertad-Buena Vista Rd (D440)
SanRom
http://www.openstreetmap.org/?lat=18.296656&lon=-88.509258San Roman-Narcisco Rd (F4501)
SanNar
http://www.openstreetmap.org/?lat=18.310091&lon=-88.511210San Narcisco-San Victor Rd (D431)
YoChen
http://www.openstreetmap.org/?lat=18.356969&lon=-88.498593Yo Chen-Pasqual Sugar Rd #2 (F4219); this is the name for the road to the east of the highway; don’t know the name for the road to the west; but this road to the east is the more important road
Pat
http://www.openstreetmap.org/?lat=18.394926&lon=-88.477565Corozal-Patchakan Rd (D410)
StaEle
http://www.openstreetmap.org/?lat=18.484197&lon=-88.399819no road name available; use the community name as you propose
Recommended Sequence of Waypoints for Philip Goldson Highway (AR2):
1. Beginning of route/Belize City
2. International Airport Rd (D202) at 17.5465, -88.2855
3. Burrell Boom Rd (D200) at 17.58492, -88.34977
4. Old Northern Highway (D250) at 17.64632, -88.37367
5. Washing Tree Rd (F2505) at lat=17.711703&lon=-88.448501
6. Crooked Tree Rd (D253) at lat=17.774935&lon=-88.479915
7. Belize Rd (old Northern Highway through Orange Walk) at 18.0554, -88.5658
8. Orange Walk-Progresso Road at 18.0843, -88.5494
9. Otro Benque Road (old Northern Highway through Orange Walk) at 18.10985, -88.56152
10. San Luis Rd #1 (F3004) at lat=18.174947&lon=-88.577751
11. Libertad-Buena Vista Rd (D440) at lat=18.235934&lon=-88.526124
12. San Roman-Narcisco Rd (F4501) at lat=18.296656&lon=-88.509258
13. San Narcisco-San Victor Rd (D431) at lat=18.310091&lon=-88.511210
14. Yo Chen-Pasqual Sugar Rd #2 (F4219) at lat=18.356969&lon=-88.498593
15. Corozal-Patchakan Rd (D410) at lat=18.484197&lon=-88.399819
16. Intersection at Santa Elena (no number) lat=18.484197&lon=-88.399819
17. Belize/Mexico border
Hummingbird Hwy (AR3)
StMar
http://www.openstreetmap.org/?lat=17.088139&lon=-88.613985no road name available; use the community name as you propose
Mid
http://www.openstreetmap.org/?lat=17.039420&lon=-88.523670no road name available, but the point does not appear to be at an intersection; it looks like it would better be located at 17.040421,-88.524363
Mile25
http://www.openstreetmap.org/?lat=17.002529&lon=-88.451528no road name available; use the mile name as you propose
AltVis
http://www.openstreetmap.org/?lat=16.990012&lon=-88.401232no road name available; use the community name as you propose
Recommended Sequence of Waypoints for the Hummingbird Highway:
1. Beginning of route/Dangriga at
2. Southern Highway (AR4) at 16.98065, -88.29472
3. Canada Hill Rd (D560) at 16.99703, -88.3022
4. Melinda Rd (D500) at 17.00038, -88.30275
5. Manatee Rd/Coastal Hwy (AR5) at 16.99816, -88.31503
6. Alta Vista at 16.990012&lon=-88.401232
7. Mile 25 at 17.002529&lon=-88.451528
8. Middlesex at 17.040421,-88.524363
9. Santa Marta at 17.088139&lon=-88.613985
10. George Price Hwy/Belmopan (AR1) at 17.2613, -88.7876
Southern Hwy (AR4)
CatLan
http://www.openstreetmap.org/?lat=16.120179&lon=-88.795018no road name available; use the community name as you propose
BigFall
http://www.openstreetmap.org/?lat=16.256195&lon=-88.885741no road name available; use the community name as you propose
SpiFarm
http://www.openstreetmap.org/?lat=16.362111&lon=-88.797078no road name available; use the community name as you propose
MedBank
http://www.openstreetmap.org/?lat=16.444012&lon=-88.744592no road name available; use the community name as you propose
Bla
http://www.openstreetmap.org/?lat=16.470352&lon=-88.625953no road name available; use the community name as you propose
SanJuan
http://www.openstreetmap.org/?lat=16.564346&lon=-88.514459there is no intersection at this location; I suggest that you use Cowpen Bypass Road (D543) at 16.566617,-88.515796
SanRosa
http://www.openstreetmap.org/?lat=16.665921&lon=-88.456094no road name available; use the community name as you propose
MayaCen
http://www.openstreetmap.org/?lat=16.796759&lon=-88.379618Jaguar Reserve Road (F5218)
SilkGra
http://www.openstreetmap.org/?lat=16.884064&lon=-88.340502there is no intersection here; I suggest that you use Commerce Bight Rd #1 (F5224) at 16.886806,-88.339194
Recommended Sequence of Waypoints for the Southern Highway (AR4):
1. Beginning of route/Punta Gorda
2. CatLan at 16.120179&lon=-88.795018
3. Carib Reserve Rd (D700) at 16.13419, -88.84419
4. San Felipe Rd (D701) at 16.15738, -88.88655
5. San Antonio Rd (D723) at 16.22812, -88.93911
6. BigFall at 16.256195&lon=-88.885741
7. SpiFarm at 16.362111&lon=-88.797078
8. MedBank at 16.444012&lon=-88.744592
9. Bla at 16.470352&lon=-88.625953
10. Cowpen Bypass Rd (D780) at 16.566600,-88.515196
11. Monkey River Rd (D781) at 16.50509, -88.49658
12. Independence Rd (D541) at 16.53265, -88.47482
13. Cowpen Bypass Rd (D543) at 16.56664, -88.51518; NOTE: This road is called D780 in the Toledo District, but changes number to D543 in the Stann Creek District
14. Red Bank Village Rd (D544) at 16.60467, -88.51291
15. Georgetown Maya Mopan Rd (D545) at 16.64162, -88.49263
16. SanRosa at 16.665921,-88.456094
17. Placencia Rd (D540) at 15.7062, -88.4246
18. Jaguar Reserve Rd (F5218) at lat=16.796759&lon=-88.379618
19. Sittee River Rd (D521) at 16.83055, -88.36434
20. Hopkins Village Rd (D526) at 16.85474, -88.34616
21. Commerce Bight Rd (F5224) at 16.886806,-88.339194
22. Canada Hill Rd #1 (D561) at 16.97780, -88.29723
23. Hummingbird Hwy (AR3)
Burrell Boom Rd (D200)
BurBoom_S
http://www.openstreetmap.org/?lat=17.559747&lon=-88.404842No road name available; use community name as you propose
BurBoom_N
http://www.openstreetmap.org/?lat=17.569930&lon=-88.387172Bermudian Landing Rd (D251) at
Recommended Sequence of Waypoints for the Burrell Boom Rd:
1. George Price Hwy (AR1) at 17.46167, -88.39239
2. BurBoom_S at 17.559747,-88.404842
3. Bermudian Landing Rd (D251) at lat=17.569930&lon=-88.387172
4. Philip Goldson Hwy (AR2) at 17.58492, -88.34977