diff --git a/.github/workflows/build-deploy-pr.yaml b/.github/workflows/build-deploy-pr.yaml
index 6add189..bb64a4d 100644
--- a/.github/workflows/build-deploy-pr.yaml
+++ b/.github/workflows/build-deploy-pr.yaml
@@ -28,6 +28,7 @@ jobs:
       - name: test run container
         run: |
           docker run --rm -v "${PWD}/test":/tmp ${{ env.container }} my_address_file_geocoded.csv
+          docker run --rm -v "${PWD}/test":/tmp ${{ env.container }} my_address_file_geocoded_shorter.csv 1000
       - name: login to ghcr
         uses: docker/login-action@v1
         with:
@@ -37,4 +38,4 @@ jobs:
       - name: deploy pull request container
         run: |
           docker tag ${{ env.container }} ${{ env.versioned }}
-          docker push ${{ env.versioned }}
\ No newline at end of file
+          docker push ${{ env.versioned }}
diff --git a/.github/workflows/build-deploy-release.yaml b/.github/workflows/build-deploy-release.yaml
index e325090..22309cf 100644
--- a/.github/workflows/build-deploy-release.yaml
+++ b/.github/workflows/build-deploy-release.yaml
@@ -29,6 +29,7 @@ jobs:
       - name: test container
         run: |
           docker run --rm -v "${PWD}/test":/tmp ${{ env.container }} my_address_file_geocoded.csv
+          docker run --rm -v "${PWD}/test":/tmp ${{ env.container }} my_address_file_geocoded_shorter.csv 1000
       - name: login to ghcr
         uses: docker/login-action@v1
         with:
@@ -39,4 +40,4 @@ jobs:
         run: |
           docker tag ${{ env.container }} ${{ env.versioned }}
           docker push ${{ env.versioned }}
-          docker push ${{ env.container }}
\ No newline at end of file
+          docker push ${{ env.container }}
diff --git a/Dockerfile b/Dockerfile
index a352d52..5a996ad 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM rocker/r-ver:4.0.5
 
 # DeGAUSS container metadata
 ENV degauss_name="roads"
-ENV degauss_version="0.2.1"
+ENV degauss_version="0.2.2"
 ENV degauss_description="proximity and length of major roads"
 ENV degauss_argument="buffer radius in meters [default: 400]"
 
diff --git a/Makefile b/Makefile
index 3a57769..931734b 100644
--- a/Makefile
+++ b/Makefile
@@ -6,6 +6,7 @@ build:
 test:
 	docker run --rm -v "${PWD}/test":/tmp roads my_address_file_geocoded.csv
 	docker run --rm -v "${PWD}/test":/tmp roads my_address_file_geocoded.csv 1000
+	docker run --rm -v "${PWD}/test":/tmp roads my_address_file_geocoded_shorter.csv 1000
 
 shell:
 	docker run --rm -it --entrypoint=/bin/bash -v "${PWD}/test":/tmp roads
diff --git a/README.md b/README.md
index 2d19bbf..bd6c142 100644
--- a/README.md
+++ b/README.md
@@ -8,10 +8,10 @@
 If `my_address_file_geocoded.csv` is a file in the current working directory with coordinate columns named `lat` and `lon`, then the [DeGAUSS command](https://degauss.org/using_degauss.html#DeGAUSS_Commands):
 
 ```sh
-docker run --rm -v $PWD:/tmp ghcr.io/degauss-org/roads:0.2.1 my_address_file_geocoded.csv
+docker run --rm -v $PWD:/tmp ghcr.io/degauss-org/roads:0.2.2 my_address_file_geocoded.csv
 ```
 
-will produce `my_address_file_geocoded_roads_0.2.1_400m_buffer.csv` with added columns:
+will produce `my_address_file_geocoded_roads_0.2.2_400m_buffer.csv` with added columns:
 
 - **`dist_to_1100`**: distance (meters) to the nearest S1100 road
 - **`dist_to_1200`**: distance (meters) to the nearest S1200 road
@@ -23,10 +23,10 @@ will produce `my_address_file_geocoded_roads_0.2.1_400m_buffer.csv` with added c
 The default buffer radius for length of roads is 400 meters, but can be changed by supplying an optional argument to the degauss command. For example, 
 
 ```sh
-docker run --rm -v $PWD:/tmp ghcr.io/degauss-org/roads:0.2.1 my_address_file_geocoded.csv 800
+docker run --rm -v $PWD:/tmp ghcr.io/degauss-org/roads:0.2.2 my_address_file_geocoded.csv 800
 ```
 
-will produce `my_address_file_geocoded_roads_0.2.1_800m_buffer.csv`, and `length_1100` and `length_1200` will be the lengths within an 800 m buffer.
+will produce `my_address_file_geocoded_roads_0.2.2_800m_buffer.csv`, and `length_1100` and `length_1200` will be the lengths within an 800 m buffer.
 
 ## Geomarker Methods
 
diff --git a/entrypoint.R b/entrypoint.R
index 0a62587..4bcc7b2 100755
--- a/entrypoint.R
+++ b/entrypoint.R
@@ -43,13 +43,13 @@ message('finding distance to nearest S1100 road...')
 nearest_index_1100 <- st_nearest_feature(d_sf, roads1100)
 d_sf$dist_to_1100 <- purrr::map2_dbl(1:nrow(d_sf),
                                      nearest_index_1100,
-                                     ~sf::st_distance(d_sf[.x,], roads1100[.y,]))
+                                     ~round(sf::st_distance(d_sf[.x,], roads1100[.y,]), 1))
 
 message('finding distance to nearest S1200 road...')
 nearest_index_1200 <- st_nearest_feature(d_sf, roads1200)
 d_sf$dist_to_1200 <- purrr::map2_dbl(1:nrow(d_sf),
                                      nearest_index_1200,
-                                     ~sf::st_distance(d_sf[.x,], roads1200[.y,]))
+                                     ~round(sf::st_distance(d_sf[.x,], roads1200[.y,]), 1))
 
 message("creating buffers...")
 buffers <- st_buffer(d_sf, dist = as.numeric(opt$buffer_radius), nQuadSegs = 1000)
@@ -66,7 +66,7 @@ get_line_length <- function(roads) {
   b_split <- split(b, b$road_length)
 
   # for buffers with any length, find that length
-  if(length(b_split) > 1) {
+  if(!is.null(b_split$`1`)) {
     roads_intersects <- purrr::map(b_split$`1`$road_index, ~roads[.x,])
     roads_intersection <- purrr::map2(1:nrow(b_split$`1`),
                                       roads_intersects,
diff --git a/test/my_address_file_geocoded_roads_0.2.0_1000m_buffer.csv b/test/my_address_file_geocoded_roads_0.2.0_1000m_buffer.csv
deleted file mode 100644
index 06f4412..0000000
--- a/test/my_address_file_geocoded_roads_0.2.0_1000m_buffer.csv
+++ /dev/null
@@ -1,7 +0,0 @@
-id,lat,lon,start_date,end_date,dist_to_1100,dist_to_1200,length_1100,length_1200
-55001310120,NA,NA,6/11/20,6/18/20,NA,NA,NA,NA
-55000100280,39.19674,-84.582601,3/1/17,3/8/17,12938,165416,0,1722
-55000100281,39.28765,-84.510173,1/30/12,2/6/12,15442,165383,0,2003
-55000100282,39.158521,-84.417572,12/1/20,12/8/20,7545,165425,0,0
-55000100283,39.158521,-84.417572,4/8/19,4/15/19,7545,165425,0,0
-55000100284,39.1639469,-84.5483588,4/8/19,4/15/19,12938,165456,3104,4032
diff --git a/test/my_address_file_geocoded_roads_0.2.0_400m_buffer.csv b/test/my_address_file_geocoded_roads_0.2.0_400m_buffer.csv
deleted file mode 100644
index 093106e..0000000
--- a/test/my_address_file_geocoded_roads_0.2.0_400m_buffer.csv
+++ /dev/null
@@ -1,7 +0,0 @@
-id,lat,lon,start_date,end_date,dist_to_1100,dist_to_1200,length_1100,length_1200
-55001310120,NA,NA,6/11/20,6/18/20,NA,NA,NA,NA
-55000100280,39.19674,-84.582601,3/1/17,3/8/17,12938,165416,0,0
-55000100281,39.28765,-84.510173,1/30/12,2/6/12,15442,165383,0,509
-55000100282,39.158521,-84.417572,12/1/20,12/8/20,7545,165425,0,0
-55000100283,39.158521,-84.417572,4/8/19,4/15/19,7545,165425,0,0
-55000100284,39.1639469,-84.5483588,4/8/19,4/15/19,12938,165456,0,1128
diff --git a/test/my_address_file_geocoded_roads_0.2.1_1000m_buffer.csv b/test/my_address_file_geocoded_roads_0.2.1_1000m_buffer.csv
deleted file mode 100644
index 33bfe7a..0000000
--- a/test/my_address_file_geocoded_roads_0.2.1_1000m_buffer.csv
+++ /dev/null
@@ -1,7 +0,0 @@
-id,lat,lon,start_date,end_date,dist_to_1100,dist_to_1200,length_1100,length_1200
-55001310120,NA,NA,6/11/20,6/18/20,NA,NA,NA,NA
-55000100280,39.19674,-84.582601,3/1/17,3/8/17,1982.8050582156613,427.10935508951405,0,1722
-55000100281,39.28765,-84.510173,1/30/12,2/6/12,1273.6600157735268,308.69451092255537,0,2003
-55000100282,39.158521,-84.417572,12/1/20,12/8/20,1059.8881801585765,1217.1614761035928,0,0
-55000100283,39.158521,-84.417572,4/8/19,4/15/19,1059.8881801585765,1217.1614761035928,0,0
-55000100284,39.1639469,-84.5483588,4/8/19,4/15/19,481.91589496349593,159.15864652403476,3104,4032
diff --git a/test/my_address_file_geocoded_roads_0.2.1_400m_buffer.csv b/test/my_address_file_geocoded_roads_0.2.1_400m_buffer.csv
deleted file mode 100644
index f7f7ae3..0000000
--- a/test/my_address_file_geocoded_roads_0.2.1_400m_buffer.csv
+++ /dev/null
@@ -1,7 +0,0 @@
-id,lat,lon,start_date,end_date,dist_to_1100,dist_to_1200,length_1100,length_1200
-55001310120,NA,NA,6/11/20,6/18/20,NA,NA,NA,NA
-55000100280,39.19674,-84.582601,3/1/17,3/8/17,1982.8050582156613,427.10935508951405,0,0
-55000100281,39.28765,-84.510173,1/30/12,2/6/12,1273.6600157735268,308.69451092255537,0,509
-55000100282,39.158521,-84.417572,12/1/20,12/8/20,1059.8881801585765,1217.1614761035928,0,0
-55000100283,39.158521,-84.417572,4/8/19,4/15/19,1059.8881801585765,1217.1614761035928,0,0
-55000100284,39.1639469,-84.5483588,4/8/19,4/15/19,481.91589496349593,159.15864652403476,0,1128
diff --git a/test/my_address_file_geocoded_roads_0.2.2_1000m_buffer.csv b/test/my_address_file_geocoded_roads_0.2.2_1000m_buffer.csv
new file mode 100644
index 0000000..3dac0c8
--- /dev/null
+++ b/test/my_address_file_geocoded_roads_0.2.2_1000m_buffer.csv
@@ -0,0 +1,7 @@
+id,lat,lon,start_date,end_date,dist_to_1100,dist_to_1200,length_1100,length_1200
+55001310120,NA,NA,6/11/20,6/18/20,NA,NA,NA,NA
+55000100280,39.19674,-84.582601,3/1/17,3/8/17,1982.8,427.1,0,1722
+55000100281,39.28765,-84.510173,1/30/12,2/6/12,1273.7,308.7,0,2003
+55000100282,39.158521,-84.417572,12/1/20,12/8/20,1059.9,1217.2,0,0
+55000100283,39.158521,-84.417572,4/8/19,4/15/19,1059.9,1217.2,0,0
+55000100284,39.1639469,-84.5483588,4/8/19,4/15/19,481.9,159.2,3104,4032
diff --git a/test/my_address_file_geocoded_roads_0.2.2_400m_buffer.csv b/test/my_address_file_geocoded_roads_0.2.2_400m_buffer.csv
new file mode 100644
index 0000000..5df1d85
--- /dev/null
+++ b/test/my_address_file_geocoded_roads_0.2.2_400m_buffer.csv
@@ -0,0 +1,7 @@
+id,lat,lon,start_date,end_date,dist_to_1100,dist_to_1200,length_1100,length_1200
+55001310120,NA,NA,6/11/20,6/18/20,NA,NA,NA,NA
+55000100280,39.19674,-84.582601,3/1/17,3/8/17,1982.8,427.1,0,0
+55000100281,39.28765,-84.510173,1/30/12,2/6/12,1273.7,308.7,0,509
+55000100282,39.158521,-84.417572,12/1/20,12/8/20,1059.9,1217.2,0,0
+55000100283,39.158521,-84.417572,4/8/19,4/15/19,1059.9,1217.2,0,0
+55000100284,39.1639469,-84.5483588,4/8/19,4/15/19,481.9,159.2,0,1128
diff --git a/test/my_address_file_geocoded_shorter.csv b/test/my_address_file_geocoded_shorter.csv
new file mode 100644
index 0000000..57a8aff
--- /dev/null
+++ b/test/my_address_file_geocoded_shorter.csv
@@ -0,0 +1,4 @@
+id,lat,lon,start_date,end_date
+55001310120,NA,NA,6/11/20,6/18/20
+55000100280,39.19674,-84.582601,3/1/17,3/8/17
+55000100281,39.28765,-84.510173,1/30/12,2/6/12
\ No newline at end of file
diff --git a/test/my_address_file_geocoded_shorter_roads_0.2.2_1000m_buffer.csv b/test/my_address_file_geocoded_shorter_roads_0.2.2_1000m_buffer.csv
new file mode 100644
index 0000000..78d04aa
--- /dev/null
+++ b/test/my_address_file_geocoded_shorter_roads_0.2.2_1000m_buffer.csv
@@ -0,0 +1,4 @@
+id,lat,lon,start_date,end_date,dist_to_1100,dist_to_1200,length_1100,length_1200
+55001310120,NA,NA,6/11/20,6/18/20,NA,NA,NA,NA
+55000100280,39.19674,-84.582601,3/1/17,3/8/17,1982.8,427.1,0,1722
+55000100281,39.28765,-84.510173,1/30/12,2/6/12,1273.7,308.7,0,2003