"""Rail network loss maps
"""
import os
import sys
from collections import OrderedDict
import geopandas as gpd
import pandas as pd
import cartopy.crs as ccrs
import cartopy.io.shapereader as shpreader
import matplotlib.pyplot as plt
import numpy as np
from shapely.geometry import LineString
from vtra.utils import *
[docs]def main():
config = load_config()
plot_set = [
{
'column': 'min_tr_loss',
'no_access':[0],
'title': 'Min Rerouting loss',
'legend_label': "Rerouting Loss (million USD/day)",
'divisor': 1000000,
'significance': 0
},
{
'column': 'max_tr_loss',
'no_access':[0],
'title': 'Max Rerouting loss',
'legend_label': "Rerouting Loss (million USD/day)",
'divisor': 1000000,
'significance': 0
},
{
'column': 'min_econ_impact',
'no_access':[0,1],
'title': 'Min Total Economic loss',
'legend_label': "Economic Loss (million USD/day)",
'divisor': 1000000,
'significance': 0
},
{
'column': 'max_econ_impact',
'no_access':[0,1],
'title': 'Max Total Economic loss',
'legend_label': "Economic Loss (million USD/day)",
'divisor': 1000000,
'significance': 0
},
{
'column': 'min_tons',
'no_access':[0,1],
'title': 'Min Daily Tons disrupted',
'legend_label': "Tons transport disrupted ('000 tons/day)",
'divisor': 1000,
'significance': 0
},
{
'column': 'max_tons',
'no_access':[0,1],
'title': 'Max Daily Tons disrupted',
'legend_label': "Tons transport disrupted ('000 tons/day)",
'divisor': 1000,
'significance': 0
},
{
'column': 'min_econ_loss',
'no_access':[1],
'title': 'Min Macroeconomic losses',
'legend_label': "Macroeconomic losses (million USD/day)",
'divisor': 1000000,
'significance': 0
},
{
'column': 'max_econ_loss',
'no_access':[1],
'title': 'Max Macroeconomic losses',
'legend_label': "Macroeconomic losses (million USD/day)",
'divisor': 1000000,
'significance': 0
}
]
color = '#006d2c'
color_by_type = {'Rail Line': color}
region_file_path = os.path.join(config['paths']['data'], 'post_processed_networks',
'rail_edges.shp')
flow_file_path = os.path.join(config['paths']['output'], 'failure_results','minmax_combined_scenarios',
'single_edge_failures_minmax_national_rail_100_percent_disrupt.csv')
region_file = gpd.read_file(region_file_path,encoding='utf-8')
flow_file = pd.read_csv(flow_file_path)
region_file = pd.merge(region_file,flow_file,how='left', on=['edge_id']).fillna(0)
for c in range(len(plot_set)):
ax = get_axes()
plot_basemap(ax, config['paths']['data'], highlight_region=[])
scale_bar(ax, location=(0.8, 0.05))
plot_basemap_labels(ax, config['paths']['data'],plot_international_left=False)
proj_lat_lon = ccrs.PlateCarree()
column = plot_set[c]['column']
weights = [
record[column]
for iter_,record in region_file.iterrows()
if int(record['no_access']) in plot_set[c]['no_access']
]
max_weight = max(weights)
width_by_range = generate_weight_bins(weights)
road_geoms_by_category = {
'1': [],
'2': []
}
for iter_,record in region_file.iterrows():
geom = record.geometry
val = record[column]
if val == 0:
cat = '2'
else:
cat = '1'
buffered_geom = None
for (nmin, nmax), width in width_by_range.items():
if nmin <= val and val < nmax:
buffered_geom = geom.buffer(width)
if buffered_geom is not None:
road_geoms_by_category[cat].append(buffered_geom)
else:
print("Feature was outside range to plot", record.index)
styles = OrderedDict([
('1', Style(color='#006d2c', zindex=9, label='Hazard failure effect')), # green
('2', Style(color='#969696', zindex=7, label='No hazard exposure/effect'))
])
for cat, geoms in road_geoms_by_category.items():
cat_style = styles[cat]
ax.add_geometries(
geoms,
crs=proj_lat_lon,
linewidth=0,
facecolor=cat_style.color,
edgecolor='none',
zorder=cat_style.zindex
)
x_l = 102.3
x_r = x_l + 0.4
base_y = 14
y_step = 0.4
y_text_nudge = 0.1
x_text_nudge = 0.1
ax.text(
x_l,
base_y + y_step - y_text_nudge,
plot_set[c]['legend_label'],
horizontalalignment='left',
transform=proj_lat_lon,
size=10)
divisor = plot_set[c]['divisor']
significance_ndigits = plot_set[c]['significance']
max_sig = []
for (i, ((nmin, nmax), line_style)) in enumerate(width_by_range.items()):
if round(nmin/divisor, significance_ndigits) < round(nmax/divisor, significance_ndigits):
max_sig.append(significance_ndigits)
elif round(nmin/divisor, significance_ndigits+1) < round(nmax/divisor, significance_ndigits+1):
max_sig.append(significance_ndigits+1)
elif round(nmin/divisor, significance_ndigits+2) < round(nmax/divisor, significance_ndigits+2):
max_sig.append(significance_ndigits+2)
else:
max_sig.append(significance_ndigits+3)
significance_ndigits = max(max_sig)
for (i, ((nmin, nmax), width)) in enumerate(width_by_range.items()):
y = base_y - (i*y_step)
line = LineString([(x_l, y), (x_r, y)]).buffer(width)
ax.add_geometries(
[line],
crs=proj_lat_lon,
linewidth=0,
edgecolor='#000000',
facecolor='#000000',
zorder=2)
if nmin == max_weight:
value_template = '>{:.' + str(significance_ndigits) + 'f}'
label = value_template.format(
round(max_weight/divisor, significance_ndigits))
else:
value_template = '{:.' + str(significance_ndigits) + \
'f}-{:.' + str(significance_ndigits) + 'f}'
label = value_template.format(
round(nmin/divisor, significance_ndigits), round(nmax/divisor, significance_ndigits))
ax.text(
x_r + x_text_nudge,
y - y_text_nudge,
label,
horizontalalignment='left',
transform=proj_lat_lon,
size=10)
plt.title(plot_set[c]['title'], fontsize=14)
print ('* Plotting ',plot_set[c]['title'])
legend_from_style_spec(ax, styles,loc='center left')
output_file = os.path.join(
config['paths']['figures'], 'rail_failure-map-{}.png'.format(column))
save_fig(output_file)
plt.close()
if __name__ == '__main__':
main()