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edited dynamic map script

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This commit is contained in:
Ben Varick 2024-04-03 10:01:32 -05:00
parent bea2ff435e
commit 16d8856ed7
Signed by: ben
SSH Key Fingerprint: SHA256:758jG979jvr5HnQJl1AQ/NYTyzXRgnuoVM/yCR024sE
2 changed files with 24 additions and 14 deletions
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6
figures/dynamic_crash_maps/dynamic_crash_map.html
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32
scripts/dynamic_crash_map.R
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@ -2,7 +2,6 @@ library(tidyverse)
library(sf)
library(tmap)
library(leaflet)
library(leaflegend)
library(RColorBrewer)
library(tidycensus)
library(htmltools)
@ -75,7 +74,10 @@ TOPS_data <- TOPS_data %>%
TOPS_geom <- st_as_sf(TOPS_data %>% filter(!is.na(latitude)), coords = c("longitude", "latitude"), crs = 4326)
focus_columns <- c("PedestrianInjurySeverity", "CrashDate", "CrashTime", "County", "Street", "CrossStreet", "PedestrianAge")
## add county borders ----
CountyBoundaries <- read_sf("data/WI_County_Boundaries_24K.geojson")
focus_columns <- c("PedestrianInjurySeverity", "CrashDate", "CrashTime", "County", "Street", "CrossStreet", "PedestrianAge", "Year")
focus_county <- "DANE"
## generate map with tmap ----
@ -100,8 +102,12 @@ Pedestrian_Crash_Data <- TOPS_data %>%
injury_severity_pal <- colorFactor(palette = injury_severity$color, domain = injury_severity$InjSevName)
County_Crash_Data <- Pedestrian_Crash_Data %>%
group_by(County) %>%
group_by(County, Year) %>%
summarise(TotalCrashes = n(),
longitude = mean(longitude, na.rm = TRUE),
latitude = mean(latitude, na.rm = TRUE)) %>%
group_by(County) %>%
summarise(MeanCrashes = mean(TotalCrashes, na.rm = TRUE),
longitude = mean(longitude, na.rm = TRUE),
latitude = mean(latitude, na.rm = TRUE))
@ -112,7 +118,7 @@ county_populations <- get_estimates(geography = "county", year = 2022, product =
mutate(County = str_to_upper(str_replace(NAME, " County, Wisconsin", "")))
County_Crash_Data <- left_join(County_Crash_Data, county_populations, join_by("County"))
County_Crash_Data <- County_Crash_Data %>%
mutate(CrashesPerPopulation = TotalCrashes/value.y*100000)
mutate(CrashesPerPopulation = MeanCrashes/value*100000)
county_pal <- colorNumeric(palette = "YlOrRd", domain = c(min(County_Crash_Data$CrashesPerPopulation, na.rm = TRUE), max(County_Crash_Data$CrashesPerPopulation, na.rm = TRUE)))
@ -132,14 +138,14 @@ tag.map.title <- tags$style(HTML("
"))
title <- tags$div(
tag.map.title, HTML("Pedestrian Crashes")
tag.map.title, HTML("Pedestrian Crashes</br>2017-2023")
)
tag.map.subtitle <- tags$style(HTML("
.leaflet-control.map-subtitle {
transform: translate(-50%,20%);
transform: translate(0%,0%);
position: fixed !important;
left: 80%;
left: 90%;
text-align: center;
padding-left: 10px;
padding-right: 10px;
@ -150,12 +156,12 @@ tag.map.subtitle <- tags$style(HTML("
"))
subtitle <- tags$div(
tag.map.subtitle, HTML("data from UW TOPS lab\n2017-2023")
tag.map.subtitle, HTML("data from UW TOPS lab - retrieved 4/2024</br>per direction of the WisDOT Bureau of Transportation Safety")
)
leaflet() %>%
addControl(title, position = "topleft", className="map-title") %>%
addControl(subtitle, position = "topleft", className="map-subtitle") %>%
addControl(subtitle, position = "bottomleft", className="map-subtitle") %>%
addProviderTiles(providers$Stadia.AlidadeSmooth) %>%
addCircleMarkers(data = Pedestrian_Crash_Data,
lng=Pedestrian_Crash_Data$longitude,
@ -169,17 +175,21 @@ leaflet() %>%
group = "Crash Points") %>%
addLegend(position = "bottomleft", labels = injury_severity$InjSevName, colors = injury_severity$color, group = "Crash Points", title = "Injury Severity") %>%
groupOptions(group = "Crash Points", zoomLevels = 10:20) %>%
addPolygons(data = CountyBoundaries,
fill = FALSE,
color = "black",
weight = 1) %>%
addCircleMarkers(data = County_Crash_Data,
lng=County_Crash_Data$longitude,
lat=County_Crash_Data$latitude,
fillColor=county_pal(County_Crash_Data$CrashesPerPopulation),
radius=County_Crash_Data$value.y/20000,
radius=County_Crash_Data$value/20000,
stroke = TRUE,
color = "black",
weight = 1,
fillOpacity = 0.7,
group = "Counties") %>%
addLegend(position = "bottomleft", pal = county_pal, values = County_Crash_Data$CrashesPerPopulation, group = "Counties", title = "Crashes per 100,000 residents") %>%
addLegend(position = "bottomleft", pal = county_pal, values = County_Crash_Data$CrashesPerPopulation, group = "Counties", title = "Mean Crashes/Year in County</br>(per 100,000 residents)") %>%
# addLegendSize(position = "bottomright", color = "black", shape = "circle", values = County_Crash_Data$value.y, group = "Counties", title = "Population of County") %>%
groupOptions(group ="Counties", zoomLevels = 1:9)