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Creation of a Low Bridge clearence POI ?

 
Mon, 05/09/2022 - 12:41am

Looking for a US overview of bridges with challenges when driving a RV, I searched this forum and could understand that there previously was a file that was taken down.
Searching a little more, I found the NBI data set that comes from the National Bridge Inspection that has a dataset that is updated every year.

I downloaded the CSV file and created a small Jupyter notebook:

import pandas as pd

# Using Dictionary for mapping
road_type = {1:'Interstate highway',
2:'U.S. numbered highway',
3:'State highway',
4:'County highway',
5:'City street',
6:'Federal lands road',
7:'State lands road',
8:'Other',
}

col_list = ["location_009","X","Y", "state_code_001","route_prefix_005b","min_vert_clr_010"]
data=pd.read_csv('NBI_Bridges.csv', usecols=col_list)
data = data[data['min_vert_clr_010']!=99.99]

updateSer = data['route_prefix_005b'].map(road_type)
data['route_prefix_005b'] = updateSer

updatemtr = data['min_vert_clr_010']*3.28084
data['min_vert_clr_010'] = updatemtr
print(data)
data.to_csv('result.csv')

.....
What Data do we need to make this usefull ???

id,X,Y,state_code,road_type,location,min_vert_clr
4,-9727361.1553,4138540.5208,1,State highway,ON WHEELER DAM,14.829396799999998
6,-9716879.2008,4016510.4812,1,County highway,1 MILE EAST HWY 195,14.993438800000002
7,-9724702.178,3997177.3295,1,County highway,1 MILE N OAKMAN HWY,13.188976799999999

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Mon, 05/09/2022 - 11:40am

Low Clearance POI file on this site

After POI Factory members geocoded and posted low clearence POIs, a company claimed copyright infringement. As a result, the file was taken down. I disagree with that, since the location of bridges is public knowledge. However, there is nothing we can do.

If you go to the trouble of editing your data into a useable POI file, it is only good for your use. Wherever it is posted on the internet, even in Denmark, the same company will again claim copyright infringement.

http://www.poi-factory.com/node/48440

dobs108 smile

[Moderator Note]
See note from JM below. Using NBI would be okay.

Mon, 05/09/2022 - 9:59am

low clearance not the only issue

Low clearance is not the only issue for RVs. All over the U.S., there are tunnels and certain bridges with rules about LP gas (propane). For some locations, you cannot cross the bridge and at others, only a certain route can be taken.

It may be wise to get a dedicated RV GPS where the dimensions of the rig can be entered. The low clearances are part of the map and would be updated by the manufacturer.

For this link, page down to New York to see the Hudson River crossings:
https://member.coach-net.com/members/pdfs/Important%20RV%20T...

dobs108 smile

Mon, 05/09/2022 - 10:29am

Using NBI data is okay

As dobs108 mentioned, we've had some issues with this type of content in the past. However, NBI is public data from the Federal Highway Administration and is clearly separate from the content that was previously in dispute.

POI Factory would be happy to host a POI file that's based on the NBI data set.

But also notice that dobs108 has some good points in his second post relating to the limitations of focusing on just bridges. His mention of getting a dedicated RV GPS is well worth considering.

Jonathan (aka JM)

Thu, 07/28/2022 - 1:47am

low bridge clearance info

Haven't been on in years. At 76 with two new hips a Toy Poodle and 75 pound Standard Poodle puppy I'm gonna go full time. Who hooo. My new 5er is a little tall from the added Maxfan shroud so was looking for low clearance POI's and came here first. Boo on low cle@r@nce.com (@'s in case they are monitoring us).
But look what I found. lowclearancemap.com. Free, and on a map. So great! And she started selling the poi's for just $5.00.

Thu, 07/28/2022 - 11:40am

Problem

punk1n wrote:

Haven't been on in years. At 76 with two new hips a Toy Poodle and 75 pound Standard Poodle puppy I'm gonna go full time. Who hooo. My new 5er is a little tall from the added Maxfan shroud so was looking for low clearance POI's and came here first. Boo on low cle@r@nce.com (@'s in case they are monitoring us).
But look what I found. lowclearancemap.com. Free, and on a map. So great! And she started selling the poi's for just $5.00.

The problem with any poi database for low clearance locations is file maintenance. It seems new clearance locations pop up almost weekly.

When I pulled a trailer, I had very good luck with the clearance database used by Garmin in their RV series GPS units. In most cases, it's a free download for those with lifetime map updates. The map/data file is updated yearly though so currency is still a problem.

Thu, 07/28/2022 - 3:30pm

I agree with the advice

I agree with the advice above, Get either an RV Garmin or the Trucker Garmin. Also stop at a Truck Stop and purchase Rand McNally's Trucker's Atlas.
https://www.randmcnally.com/product/rand-mcnally-motor-carri...

--
Frank DriveSmart55 37.322760, -79.511267
Fri, 07/29/2022 - 12:20pm

Wow ...

... Glad I grabbed that file when I did.

How long before someone lays 'copyright claim' to other types of POI files? Seems petty in a day where corporate evil interests can use 'copyrighted' music to advertise everything from iced tea to prescription drugs without payment to the original artists.

Come and get me ... razz

--

it's the dog's fault

--
Garmin DriveSmart 5 My other toys: IMac quad-core i3, Mac Mini M1. MacOS: Ventura 13.3.1 The dog's name is Ginger.