## 3 Reclassification of Emergency Messages Dissemination Approaches
### Simulation Parameters and Setup
We also show timelines of these mechanisms in Figure 4.  
```
Input:\(mess_{i}(i,p)=(i,p,(x_{i},y_{i},t_{a}^{i,p}),Stt)\) or \(mess_{j}(i,p)=(i,p,(x_{i},y_{i},t_{a}^{i,p}),timer(h^{\prime},i,p),2)\) on \(fe_{h}\) acquired from \(me_{i}\) or \(me_{j}\) Output:\(mess_{h}(\phi_{h}^{i,p})=(h,inc_{i}^{p},timer_\phi(h,i,p),(u_{a},t_{b},...))\) notified on \(me_{k}\) receive \(mess_{i}(i,p)\) from \(me_{i}\) or \(mess_{j}(i,p)\) from \(me_{j}\); \((i,p,(x_{i},y_{i},t_{a}^{i,p}),Stt)\gets mess_{i}(i,p)\); \(\phi_{h}^{i,p})=(h,inc_{i}^{p},(u_{a},t_{b},...))\); ifStr = 0 then \(\lambda\gets 1\);  start \(timer_\phi(h,i,p)\) on 100%;  generate random intensities in \([0,0.1]\) for exits except \(t\) corresponding to \((x_{i},y_{i})\);  end if elseifStr == 1 then \(\lambda\leftarrow\lambda+1\);  reset \(timer_\phi(h,i,p)\) on 100%;  end if else(i.e., \(St\) == 2) if(\(timer(h^{\prime},i,p)>thr\))then  start \(timer_\phi(h,i,p)\) on \(timer(h^{\prime},i,p)\) received from \(me_{j}\); else  do nothing;  end if  end while \(timer\_\phi(h,i,p)>0\)do  update \((t_{a},t_{b},...)\); \(mess_{h}(\phi_{h}^{i,p})(h,inc_{i}^{p},timer_\phi(h,i,p),(u_{a},t_{b},...))\);  broadcast periodically \(mess_{h}(\phi_{h}^{i,p})\);  end
```  
**Algorithm 2**Incident message acquisition on fixed entity \(fe_{h}\) from mobile entity \(me_{i}\) and creation and notification of pheromone from fixed entity \(fe_{h}\) for consumption on \(me_{k}\)  
```
Input:\(mess_{h}(\phi_{h}^{i,p})=(h,inc_{i}^{p},timer_\phi(h,i,p),(u_{a},t_{b},...))\) consumed on \(me_{k}\) from \(fe_{h}\) Output: decision taken on \(me_{k}\) from consumption of pheromone message \(mess_{h}(\phi_{h}^{i,p})\) receive \(mess_{h}(\phi_{h}^{i,p})\) from \(fe_{h}\); \(h,inc_{i}^{p},timer_\phi(h,i,p),(u_{a},t_{b},...))\leftarrow\phi_{h}^{i,p}\); if(any \((u_{a},t_{b},...)\) for\((a\) in \(te_{i}^{p})\)\(\
ot\in\)\(\
ot\in\)\((xing(me_{k},fe_{h},\phi_{h}^{i,p}(fe_{h})))\)then if(\((u_{a}>thr)\
ot\in\)\(\
ot\in\)\((a\) in route)) \(\parallel\) (\(t_{b}>thr\)\(\
ot\in\)\(\
ot\in\)\((b\) in route))...then  do re-route; else  continue over current route;  end if else  do nothing;  end if  start \(countdown_timer\getstimer_\phi(h,i,p)\) from consumed pheromone;
```  
**Algorithm 3**Pheromone message consumption on mobile entity \(me_{k}\) from fixed entity \(fe_{h}\)  
```
Input:\(mess_{h}(\phi_{h}^{i,p})=(h,inc_{i}^{p},timer_\phi(h,i,p),(u_{a},t_{b},...))\) consumed on \(me_{k}\) from \(fe_{h}\) Output: decision taken on \(me_{k}\) from consumption of pheromone message \(mess_{h}(\phi_{h}^{i,p})\) receive \(mess_{h}(\phi_{h}^{i,p})\) from \(fe_{h}\); \(h,inc_{i}^{p},timer_\phi(h,i,p),(u_{a}
```
Input:\(mess_{h}(\phi_{h}^{i,p})=(h,inc_{i}^{p},timer\_\phi(h,i,p),(ta,t_{b},...))\) consumed on \(me_{j}\) from \(fe_{h}\) Output:\(mess_{j}(j,q)=(i,p,(x_{i},y_{i},t_{a}^{i,p}),Stt)\) segregated on \(fe_{h}^{\prime}\) exactly once receive \(mess_{h}(\phi_{h}^{i,p})\) from \(fe_{h}\); \(h,inc_{i}^{p},timer\_\phi(h,i,p),(ta,t_{b},...))\leftarrow\phi_{h}^{i,p}\);  create if(any \((ta,t_{b},...)\) correspond to \(inc_{i}^{p}\)) && (\(xing(me_{b},fe_{h},\phi_{h}^{i,p}(fe_{h}))\)) then if(\((ta_{b}>thr)\)&& (a in route)) \(\parallel\) (\((t_{b}>thr)\)&& (b in route))... then do re-route; else continue over current route;  end if else do nothing; end if start \(countdown\_timer\gets timer\_\phi(h,i,p)\) from consumed pheromone;
```

**Algorithm 4**Non-local incident relay and message incident segregation by mobile entity \(me_{j}\) on fixed entity \(fe_{h}^{\prime}\)

The physical area where EMs are disseminated is the variant for the pheromone and both flooding mechanisms compared in Figures 5 and 6. The detailed parameters for radio, communication space and time, messages, and vehicles which support our simulations are reported in Tables 7, 8, 9, and 10, respectively. Figure 3: Space setup for every simulated environment with routes to be modified and incident location. Figure 4: Time setup for every mechanism in the simulated environment with the time period of the incident and pheromone lifetime.